With "imminent" XMC-1 w/Atmos what Emo speakers for height?

[Percussionista]

Any rumors on actual ceiling speakers (not in wall) for Atmos/DTS-X by Emotiva when the XMC-1/board will be shipping with Atmos etc. support?

Otherwise, any "simple" and safe way to use E1's? (i.e., a simple mounting "bracket" allowing attachment of the E1's without them slipping off, but still not hard to remove them if needed).

What about SVS Prime Elevation speakers at the top of wall/ceiling junction?

I'm still juggling what I want/intend to do in my small 11x17 theater room, but I am convinced I'm going no more than 5.1.2, which conveniently I can fully drive with my MPS-2. Of course, one never knows if I will go to 5.2.2 for balance, but the single SVS PC-12+ alone had to be considerably tamed because of room gain!

[ÈlTwo]

I plan on going 5.1.4, awaiting XMC-1 upgrade board with ATMOS. But also wondering about ceiling speakers to go into that set up.