It appears Insomniac won't be making another Resistance game after R3.

http://www.gamingunion.net/news/insomniac-sees-resistance-going-to-another-developer--6177.html

Here is a sample of the interview:

Gaming Union: "Insomniac seems pretty busy at the moment - Ratchet & Clank is going strong, OverStrike is on the way, etc.. Is Resistance still your flagship franchise? Where does the series fit in the studio's future plans?"

Marcus Smith: "As far as Insomniac goes... you're right. We've got three different games with very different focuses. We're kind of going in a lot of different directions. Ted Price, Alex and Brian Hastings, the owners, have been doing this for a long time - something like 15 years of doing Sony exclusive games - and they're just interested in doing other things."

Well I'd say for now at least. I really want them to make a mascot platformer alot

Good, good. I never cared about Resistance but I like Incomniac. This means they can focus on something else, hopefully something new.

They will go back when Overstrike fails..

Make a new Mega franchise, not Resistance.

Good,3 games are more than enough.4 if you include retribution on PSP

3 parts if they nicely close trilogy are more than enough for single generation. Now bring us some new IPS :)

Great news if true. Be done with an awesome series and go on to new things. Wish other Devs would do the same.

Well really none of their 3 games is gonna gangbusters is it. As soon as R&C or R3 launch people will call them faillures.

Wonder if Sony will get Guriella Games (SP?) on it? Killzone isn't really that much bigger than Resistance franchise, so for them to alternate would be a good idea.