I realise there are probably more important things to code, but in the long term I'd like to see a few to touch ups/alterations. 

Roulette:

The ability to play more than 1 number per spin, I don't know how many of you are roulette enthusiasts like myself, but I can't say there are too many occasions where I have played a single number. Basically you pick your table denomination, $2500, $5000 etc, then you place all the chips on the table in the various areas of the table. Being able to place call/neighbour bets would also be a bonus.

Blackjack:

Surrender... Blackjack needs a surrender desperately, 12 against an Ace, yes I will have half my money back thanks. Also, when splitting aces you don't get paid blackjack for 21 made this way, casino owners are getting a raw deal there. Being able to play more than 1 box would also be nice, anyone who believes in BJ strategy would play 2 or 3 boxes with a staggered bet system. A bonus bet would also be really nice, like a 777 bonus bet or perfect pairs. 

I will be honest I don't really play slots in the casino's currently cause the odds are horrific.

Craps:

A more interactive display? Rather than just Pass or Don't Pass, being able to bet on hard 8's etc.

Poker:

A built in Texas Holdem client would be amazing. I realise there are other servers where this can be utilised, just suggesting...

I love gambling in the game, and it works more or less perfectly as it is. Just a few suggestions.

If anyone would like to see more detail I would be happy to elaborate, I just wanted to see the general response to the suggestions before ranting needlessly.

I think more definitely needs to be done to the casino. Additions would definitely be nice though they may be hard to code. Poker is something that would be amazing, but I don't think it can be done easily. However, I do support revamping the old games to add more features.