Interesting questions... My guess is that what is currently the HD-2 24/7Classical feed will become 101.1's primary feed... since they have stated that even at launch 101.1 will be 24/7 classical we know that 89.7 will still be hybrid classical/NPR until Jan 6th when it meets up with AM 820 for 24/7 NPR, I would think that the programming on the HD-2 stream would be what is fed to 101.1
The 1 AM legal on the Classical 24/7 stream was the standard WOSU, HD1 and HD2 Columbus (I believe they are simulcasting the overnight classical music on 89.7's primary) and the various stations rebroadcasting WOSU. No mention of WOSA, though that probably won't show up until 6.
That tells me that they probably will simulcast WOSA on WOSU's HD2, and that makes sense. Many new classical startups with signal issues have done the same, though 101.1 is a better signal than most of those stations, and they're supplementing it with Marion. And it'll be a lot easier to just keep one 24/7 classical signal, using "Classical 101".
Heh...maybe they'll come out of the box at 6 (I will not be awake) and call themselves "Classical CD101 @ 101.1".

And speaking of which:
Also as a side note.. The web guys at CD101 @ 102.5 still got some work to do on their website.. There are still way to many 'refs' to 101.1 FM on their website.. including their web stream player that has no mention of 102.5 on it.
The sale contract requires them to stop using "101" and "101.1" now that the sale has closed, but I bet they will still use "CD101 @ 102.5" on the air as long as tOSU lets them get away with it. Again, no real listener overlap worries due to the format.
But you're right...way too many "CD101" references are still on the website, even without the "102-five" logo nearby. And not even their ID loop is being heard on 101.1 now.