Are there any new abilities besides the new goop for the Chomper, and the Heal Beam for the Scientist? Is there anything to liven up the old plants and zombies? Also, are there any new abilities for the new classes besides what comes equipped?
The old classes have their optional abilities (artichoke drone, Iron Maiden Nut, Sombrero Chili Bean Bomb, etc.) intact when I imported them from GW1. I assume, then, that players of GW2 will be able to unlock them as well. The way to unlock these is not well documented yet. The unlock system has changed since GW1, so abilities may be unlocked via Stars or some other method.
Not necessarily a definite answer, but you can utilize the 'Abilities' section in your sticker book to figure out what abilities there are to unlock. The only new abilities listed are the Chomp Cannon and the Heal Beam of Science. That's not to say that there won't be more with the DLC, but definitely keep your eyes Citrons peeled to your stickerbook as that's a good indicator for content that you might not have yet.
