S!
I would still wait for the OFFICIAL announcement before jumping into any conclusions, which seems to be the case already.
My bet is that IL-2 series will continue as it's own branch like it has done for the last 10+ years and this MMO, or whatever you want to call it, is just another branch to the IL-2 franchise. Until anything solid is shown I will for sure enjoy IL-2 series until something better will emerge, which I doubt will happen any time soon.