Im a WA fan and this is my opinion about WR.

Disappointment Things :
*Too few weapons, all WA\WWP weapons will be perfect.
*Too few image levels (like books, snowy , Team 17 Logo).
*What happen to this
http://i34.tinypic.com/vhzxno.jpg
*Why cant i change the schemes fast like in WA\WWP.
For example i want a game with Worms Select so why i need to creat full new scheme for that.
*Weapon menu suck, i cant change weapons with F1 F2 F3....
This is how the menu weapon should look like
http://i33.tinypic.com/120pjx4.jpg
*I cant play with my 5 friends. why only 4 poeple can play at?
*I cant make my own image and play it in the game.
*Its hard to play old fan schemes and game types like Shopper,Wall-X-Wall Shopper,Walk For Weapons,CTF,Hysteria.

Improvement Thing :
*Improved CPU (But they still cant use rope or jetpack :D)
*The grenade in this game soo cool now :-).
*New weapons, but not as good as WA weapons.
*Better graphic.
And More!

Will i think WR is a pretty good game but WA v3.0 way way better,
Im playing WA until today all way from 1999 and i never get bored.
i think evryone will agree if i say WA was a masterpiece.