The new game looks like its going to be a good one! Your domain would work for a fan site, message board, or tip site, for the game. If the online play becomes popular you could do well.
These types of domains have a short lifecycle based on the games themselves so they require that you either develop or sell them rather quickly. Long term plans are not viable, so the value is impacted by that. Personally, I would much rather own a more generic domain representing the entire series than one on just a single episode of it. TimesplittersFans.com or something along the lines would allow continuation of the site for years to come if the game series continued.
So if you can sell now, value ~$100 end user, ~$30 reseller.
Also seems the title will be "Timesplitters: Future Perfect". Might want to grab timesplittersfp.com as well if you have development plans.