I'm planning on getting one, too (so long as the price points are around the same as for the current iPad).
I'm not actually bothered about front/back cameras, but as there will be a new model due soon, I'm happy to wait & get that, rather than jump in now.
And hopefully there'll be more to it than just a couple of cameras & a slimmer case.
I would think that more RAM is a given... the iPad only has 256MB, whereas the Galaxy Tab has 512MB, and the upcoming BlackBerry PlayBook & Motorolla Xoom both have 1GB.
Dual-core ARM Cortex-A9 would be lovely, but may be a bit too much of a jump.
Still, at the moment, I'm intending on getting a 32GB, maybe 64GB, WiFi only model. I don't need a 3G one, & don't think it's worth the extra £100.