Not sure what you mean by "a long game" but short answer yes, there are probably now at least 180 minigames if not more, and a couple of thousand cards. The changelog lists all the changes from beta 47 onwards so you can see what has changed, and there has been lots, really Crazy party is quite an amazing game in both modes.
Btw as regards the new games, the plane has some tough ones. I actually think the rainbow tower should be more of a challenge in its own right, since I do like the idea of going to other minigames to grab gems, but yee gods just being presented with things off the bat is rather tough, especially considering you can end up going into the same teleporter twice over by mistake.
This one should really be some later challenge on its own and teleporters should disappear once used to make it fair.
Heck it'd make an awesome board game, which reminds me, are we going to see some editions to the board game? its one of my favourite parts of crazy party, but other than the addition of a new minigame or two to the roster of each board we've not seen any changes to the mode since the start, no new squares, no new objects, no new board types, and there is so much potential for random fun, just look at the actual marrio party games for a bit of inspiration.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)