I did not think they were lost but just that he could not take advantage of them. The Tree is not going away just because Corvus' MT is low. He just needs to take time to incorporate it into his lab.
I think you're saying the same thing mechanically. Yes, the tree is present. And if the Refinement is high enough to incorporate it, a season may be spent to incorporate it as a Minor Feature. Or the season of Refinement could be skipped to incorporate it as both a Minor Feature and a Minor Focus (unless there is one already - need to check on that).
Oh, and for clarity, those are not refinements but Virtues. Refinement is the organizational structure / flow / what-have-you.
Things should start to get a lot calmer in two days, I believe. That's my last day of work at this job and the day we do the purchase & sale on the home we're buying. Things won't be back to usual for quite a while, but the chaos of the past few months should be over.
Right.
It just changes the amount of time taken. To incorporate an existing feature like the tree it takes one season. It is there and Corvus would have to spend time "adding it" to his lab. To change a feature like the portal it takes a season to remove it. That is if removing it adds +1 refinement that can be used later to add another virtue or feature. Or it takes a season to remove it and a season to refine the lab and a season to add a virtue or feature ( if refinement starts at zero).
I never got an answer to this question and I'm still trying to finalize my grog advancement. Any guidance?
Yes they can, but they will (probably) have a lower priority for any given book than a magus or Companion.
I offer this only as an alternative if people like it. Here is a Google Drive spreadsheet that we could use to monitor seasonal planning:
https://docs.google.com/spreadsheets/d/1W4Vsif1dDFLtFc4KSVEyuNKczNPrp2aWb84lqZ9KpnE/edit#gid=0
My thoughts are that Google Drive spreadsheets are easier to edit than a wiki page, which make them easier to use. That having been said, if people would prefer to continue using the wiki for seasonal planning, I understand. The spreadsheet didn't take me much time to create. Just some cutting and pasting and formatting. So I won't be bothered if it never gets used. 
Now that we're having multiple adventures in a single season, I have a question about Independent Study. Does that give extra xp for each mini-adventure, or does it only give extra xp once per season?
My exact thought. I was thinking once a season but I have not looked up the wording on the virtue or the experience rules again.
The wording is "add 3 to the source quality of his adventure experience"
To me that implies +3 per source, or per adventure.
It could, of course, refer to his adventure experience for the season.
Adventure Experience is addressed as follows in the core rules:
So, technically, if we want to go just by the rules, you'd have to pick one adventure and spend all season consolidating what you learned on that adventure.
Peregrine has been kind enough to say that short adventures don't preclude taking other xp (presumably including from other adventures). The question is whether he will interpret multiple adventures as giving separate xp that can get a separate bonus each time or whether they contribute to a seasonal adventure xp total that can have a single bonus added. We're already off the reservation as far as how adventure xp will be interpreted. Peregrine has to clarify what he means by allowing people to take xp from multiple adventures in one season.
I observe that in some cases the xp being given for a short adventure is 1 xp, in which case the bonus would be 3x the grant. And if someone went on three short adventures in a season, they might get a bonus of +9 xp for the season, quite above what they received for the adventures, and quite above what they received from their additional action. That seems a bit extreme for one Virtue, especially if Peregrine's intention is to have a large number of small adventures where a point or two or three of xp are given out.
Seems a tad muchkin to be adding +3 to mini-stories, and (I'm guessing) was assumed to be per season given how the core works.
I have recorded it the way that makes sense to me, if Peregrine rules differently I will change it.
Once per season.
It's also a carrot to get characters to interact more than they might otherwise.
I was just thinking about doing something like this Tuesday afternoon. I like it. And definitely a lot easier to work with than the tables on the wiki.
Took forever for me to find this. But I did!
Have the seasons changed? Things look different in the Google Sheet - it now looks like two season of Latin, one in the spring and one in the fall. Thank you so much for making that, Trogdor, btw.
Assuming the original plan:
Beatrix and Lili will both study Latin under Alister.
Beatrix, Güunther, and Lily will all study Awareness under Alister.
I thought I copied and pasted everything exactly as it was. If I mixed something up, please correct it.
Seamus's seasons don't match what you've said Alister is doing.
Also, I was thinking that grogs (i.e., all non-magi, non-companions, non-familiars) would stay off the Google sheet. Otherwise it'll get awfully big. Maybe we need another sheet for them.