I would hope more than 6-7, Pokemon TGC usually tries to give us 8-9 to play with.DNA said:As far as is known, there is no new set announced before July 1st other than Black&White. However, it is possible that Black&White 2 will be released sometime before Nationals (although this is as of yet unconfirmed).
We will have either 6 or 7 sets to work with (the HGSS bloc has 5 sets, and the BW bloc will have 1 or 2 sets, depending if a new one is released).
The legal promos will most likely be HGSS01 and up.