Well, since Im on vacation, I havent been able to weigh in just yet, but I love everything about the games revealed so far!
I personally do not care if we can carry over our mons from the last gen or not though- I have been around since the start (Genwunner that "LIKES" new Pokemon and is not a purist! lol), and I have already had to deal with the whole not transferring over thing. Also, the main positive it would allow (which I see a lot of people mentioning) is stat-redistribution for certian Pokemon that cant compete by todays battling standards, IV/EV refinement, Ability change-ups, redistribute moves to balance the game (TROLL ROCKS anyone?) and Im sure there are other things too.
If they changed the IV system to have only say, 15 variances for each stat, instead of 32, it would make it alot easier to breed better mons. EV system could be upped to a 715 system or something to account for less variances in stats. This would make your Pokemon more unique in a way YOU choose as opposed to whatever the game/RNG decides.
Id also love it if they just got rid of the "Shiny mechanic" and implemented a "varied color" mechanic instead. Like 1 in 4 mons could have 1 of 4 or 5 color variances. More variety is almost ALWAYS better. (The shiny Gogoat gave me this idea BTW, since its color pallet is so abysmally different.)
Anyways, on to the new mons-
Noivern- Upon first glance, I thought it was a bit ugly, but it has since grown on me- once I had a chance to inspect its design a bit closer. I first thought it was a Dragon evo for Swoobat, based on the ears, but now Im pretty convinced its a fresh mon.
Skelp- Looks like a poison evo for Seadra honestly, but meh, not too impressed.
Clauncher- Well, it is definitely a serious contender to take Froakies slot in my team alongside my main starter Chespin, I love its design and coloring, and to have a true Lobster mon (Corphish was meh) is defintiely nice.
The Cub- I like its design, even though its eyes are a bit derpy IMO, but it has a lot of potential (Manticore!) and Im curious to see what its secondary Normal typing becomes. It could have a spot for the Fire Type on my team, as long as FlameTalon doesnt end up being even more rad than the Cubs evo.
Flame Talon- Pretty awesome. I was seriously doubting Fletchling evolving into anything remotely cool looking, and the only other gen bird I have ever liked was Staraptor, so this is a second coming for me liking a starting bird a lot.
The butterfly and the fairy are the worst designs of the bunch IMO- they all have unique things about them that i can appreciate, but I wont be using them most likely. I was actually hoping that GF could do some more interesting type combinations with Bug this time around, but Bug/Flying is as weak a combo as ever, and its not getting any better. Also, I would have definitely liked a more unique and less stereotypical fairy to be revealed along with the type. Oh well though.
I cant wait to see what other crazy things they are implementing or changing with these new additions to the Pokemon franchise. October just cannot come soon enough! And FWIW- Im taking 5 straight days off work just to marathon the hell out of these games when I get them!