So after thinking about all I have been reading here and with the interview with the xbox team in the past month. Here is a list of possible acquistion by microsoft. This is not base on any top secret information or insider vision but on my own reading. Some don't make any sense with the interview but make sense for me for a lot of reason. Some of them are not a real possibility but why not dream. My personnal choice are the one in bold.
1-100 studio
Deck 13 (Germany base, efficient, interesting talent pool, Trademark are not own by DECK13)
Mistwalker (Japan base,talent pool)
Starbreeze studio ( Sweden base, talent pool)
Turtle rock studio (USA base, talent pool)
100-200 studio
Asobo studio (France base , No trademark, Microsoft partner)
Certain affinity (USA base, interesting talent pool, not a lot of trademark)
Iron Galaxy Studios, LLC (USA base)
Larian Studios (Belgium base, Great talent pool, Efficient, RPG, No trademark)
Obsidian Entertainment, Inc (USA base, Efficient, RPG, Trademark)
Remedy entertainment ( Finland base, efficient, technology, trademark)
200-500 studio
Gearbox software (USA base, talent pool is interesting, Great trademark)
Insomniac Games (USA base, talent pool is interesting, Great trademark)
Rebellion Developments (UK base, talent pool is interesting, trademark ownership is complicated)