I think X and Y is just out of creativity for the ledgendaries.
I was hoping for monochrome and Rainbow next D:
or Stellar, Lunar and Solar.
I really love Chespins designs too.
But I hope they bring out a few more steel types or bug types.
but in this link; http://pokejungle.net/2013/01/22/rumours-predicament/ (in previous post) I think it would be cool for crossbred pokemon that would be cool.
I'm also concerned with the trading in gen 6. any ideas?