I still wonder about Kimi to RBR, mainly due to how it could affect the team dynamics. Weber is a nice guy, but he's clearly not a challenge to Vettel. Kimi could be, but you have to believe RBR will continue to treat Vettel as #1 both because he'll likely have his fourth straight WDC in hand and Mateschitz loves him. RBR saw what Alonso+Lewis did to McLaren - do they want to risk that with Vettel + Kimi?
Lotus F1's problem has been cash, but the infusion from Infinity Racing Partners Limited and some larger sponsorship deals might be enough for them to continue to afford Kimi's services.
I also agree Massa probably is done at Ferrari. If nothing else, Ferrari needs a reliable #2 finisher to help them in the Constructor's Championship. Yes, they get a nice guaranteed minimum from the FIA for being Ferrari, but the monies paid for being #2 in the championship are a fair bit nicer than #4, I imagine.
And I don't think it will be Giancarlo Fisichella based on the job he did for them in 2009 subbing for Massa. 😉