This is from the page(I didn't create this): "We are a group trying to convince Crytek to finish developing TimeSplitters 4! Even if it means doing a Kickstarter. (I'd fund that!)"
http://www.facebook.com/Timesplitters4PLZ Join now if you're on facebook. And try to get as many of your friends to join as you can.
Graeme Norgate(TimeSplitters Composer) promised this: "And if we get to 100k i'll write a little ts inspired victory tune :)" And Chris Matthews(Senior Artist at Crytek) promised this: "Get to 1000 likes and I will build a character - I don't know what it will be - comment here and the community will pick the best suggestion -"
This blog post by Graeme Norgate shows his enthusiasm in possibly making the game someday: http://graemenorgate.blogspot.co.uk/2012/06/nobody-likes-me-everybody-hates-me.html#comment-form
Spread the word! Show Crytek how many people out there want this game to finally be made.
This article that Graeme Norgate shared on his facebook page commenting: "Sums it up really" Shows that a lot of people at Crytek UK really want to do it. And that it is not currently in the making despite of a lot of rumors lately: http://www.computerandvideogames.com/353240/crytek-ceo-weighs-options-for-timesplitters-4/
To help more, sign this petition also: http://www.petitiononline.com/TS4tcbd1/petition.html
If you want to help more: Spread the word on: Timesplitters forums/different game sites and forums in general. Find videos of Timesplitters that have a lot of views and comment on them about this. Invite friends to join on Facebook. Especially if you know people who like Timesplitters(or even fps games in general). and sign this petition: http://www.petitiononline.com/TS4tcbd1/petition.html etc. IMPORTANT!!: remember to use this exact title "100,000 Strong for Timesplitters 4", when spreading the word. We want all the people to join on the same page. Of course it doesn't hurt to also join in other sites about ts4. But this seems to be the one that we're going with.