Some very cool ideas. If I was your SG I wouldn't let you get away with doing ReVi for all your research projects but several of your examples made a lot of sense. Though I wouldn't agree to every virtue you've shown is eligible for full integration I have some suggestions.
Art of Memory- I believe Art of Memory is an academic ability and hence not magic. But Hermetics with the Art of Memory are able to conjure mentem effects that work with the ability. It's debatable if the spells work for magi who have no score in the ability. If not creating mentem effects that allow magi to get the benefits of the skill without knowing it could be an end goal for integration. So a spell or device that bestows a memorization bonus or creates a palace or foci in anyones mind would be good projects.
Divination and Visions-Hermetic divination is a supernatural ability that basically lets you copy almost any In(fo) spell you can think of. Full(er) integration might mean that any Magi can learn divination without the associated virtue. Maybe they won't even need to learn a separate ability using Magic Theory or their flat Intellego score. Either way any intellego effect would work for a research project. Projects that successfully achieve a discovery might be a bit more flexible. The Enchanted Scrying device that adds a bonus to divination rolls would be both a good source of insights and a sensible project to experiment on.
Visions would be a good place to gain insight into breaking the Limit of Time. In which case experiments might try to create effects that are mildly precognitive. A watching ward that goes of Just before a condition occurs. (though really it's a bit of a cosmetic effect)
Minor Focus & Affinity-Not my first choice for virtues I'd want everyone to get. To each there own but reasons are mentioned in my last post on this old thread. [url]Alt Setting: A Hermetic Renaissance - #13 by maine75man] Your ideas are okay if your troupe allow it, but the spell you created as an example for focus does double dip into the bonuses. It becomes very powerful for characters who actually do have an applicable focus virtue. I like how you avoided that sort of stacking with other virtues.
An interesting project that might be inspired from focus virtues would be allowing characters to write extra tractatus based on their specialty.
Cautious Sorcerer-Research projects creating rituals that are slightly safer to cast (one or two fewer botch dice) spring to mind.
Study Bonus-Probably my favorite virtue of yours to fully integrate. More effects like the one you listed that help some specific or subject of study but don't stack with the virtue or each other sound great. Also, Book Resonances from Covenants always seemed related in some way with this virtue. Justifiable as a source of insights also a somewhat improved versions would makes good experiments.