About time! Sure Fender is good but man I love Gretsch.
Yeah okay I'll take the Duo Jet model but, since they got the license now; Maybe they (HMX) could have MadCats manufacture a White Falcon or a Penguin.
And for the more, hardcore, fans... how about modeling the special guitars like the Axe and Chainsaw guitar? Sure it might be a smaller demographic but oooh that'd be so sweet.
As for drums, add some more realism to them. It is time to make the cymbals stock with newer models of the RB2 drums at least.