I have heard the same rumors as LordGalewind :
A person from our forum did already see the dealers catalogus for 2010 ( including summer sets ).
As for the excavator, it's yellow, has tracks, 4 ( not sure ) LA's, 4 medium pf motors, 2 recievers and 2 remotes (!).
I gues that the whole upperpart is controlled by PF an that only the tracks are manual.
He also did saw new PF trains, wich contains the new rechargeable battery box. Maybe it's also in the excavator ( because it's much smaller ).