Havn't downloaded anything yet, (right now taking a small break from looking), but I've read through most of this since the begining, and WOW!
You have a fan-following! From the screenshots and comments, this is one of the best i've ever seen! (granted, i havn't actually seen it yet) I hope you have lots of fun doing it, and good luck to you. Take as long as you like. And people, please stop asking the release date, its been asked like, 30 times a page...
p.s.:
If your still on the look out for pokemon Ideas, What about a cloud kinda thing, with air and ice and weather attacks. (Ie: Sunny Day, Whirlwind...) although sunny day isn't an ice attack at all :p Hm, or an Evergreen-Plant/Ice pokemon! (Since evergreens are the only thing that are green in the winter) Perfect for an ice theme.
Hm, then you could have a ghost type, thats related to black-ice somehow. (Pokedex: Known for pushing people, and sometimes mistaken for black ice) or something. I dunno, just trying to help. Sorry if I'm bothering.
P.p.S.: Some trainer ideas, eskimoes! And those polar bear club people. The strange people who swim in shorts in the arctic. And a mail-man! Rain, Snow, Sleet, or hail! he can be complaining that "I wasn't ex-p-p-pecting it to be th-th-this co-o-old..."
I'd love to lend more ideas for basically anything if you like them. Sorry to bother you if your not taking them anymore.