Morrowind, KOTOR 2, Jade Empire Headline New Wave of Original Xbox Backwards Compatible Games - IGN
Pricing isn't available yet. The last batch of games they released were all priced at 9.99 except one was 14.99.
Not gonna speak for all of those, but if you have modded PC versions of them, you're probably not going to want the released developer's cut for xbone. Well. KOTOR 2 anyway. Lots of the content that was disabled because of deadlines got added back in by mods. If you've already played that content, I can't see the original release being all that interesting.