didn't it look like gamer wanted to make a new game like FO?

I wouldn't count on it.
It's technically the company Pixelated Games which owns the rights, which could mean any number of strings around it depending on how it was set up.
It's entirely possible that it isn't actually, or fully, his choice, and that there are other obligations.

Seeing as Gamer did games before FO (Splitter pals), I would imagine he's more likely to go back to that sort of game if he does anything else, at least for a while.

Never mind the health issues he let us know about, I wouldn't expect anything from him anytime soon.

health issues!?
i didnt know about Splitter pals either.. so do you guys have some kind of contact info so that you can write to him if you wish? i really wish that you tell him about this new game..

Ah, yeah he mentioned them on his twitter occasionally, he had some pretty serious problems with his heart I believe (from what I remember anyway).
It's a pretty fun game actually, I played it on Kong without realising he had been part of it.

I don't personally have his contact details, but I think a few people have his email etc.

Here is a splitter pals link on armor games:
armorgames.com/play/11027/splitter-pals

I have his email. But I don't see why there's any need to contact him about the game that llama and others are working to create. For starters, it has nothing to do with FO, except that several of the people involved in FO will be involved in this game. Again, a lot of people seem to be confused, but from what I know, the new game will not be associated with FO in any way...

yes, its not associated. but we all love him for making the game that brought a wonderful community together. 
 I am sure, after all his efforts towards FO, and the disappointment of having to let it go, he would surely like to follow the progress of a new game being made, which is intended give the same "feel" as the original game that he worked hard on. FO is pretty much an inspiration for this game. so just let him know please. or give me the email id so that i can tell?

lol I'm pretty sure he knows. when almost anyone who was on FO in last days know it would be kinda surprising if somehow Gamer managed to miss all the news

is gamer sick or dying?

Perhaps the game he is making should be a secret.
If he's making one

Splitter Pals on Kongregate and armor games has different developer/ autor ...
Is that really made by Gamer?

Can't say for certain, but I think he just ran a promo for it. He might have helped make it too though.

Since he didn't removed the Splitter Pal headgear in-game, I think he did something for the game.

I'm going to take a stab and say he helped more with the mobile version.
As I believe that's the one where his name appears in the credits.