The last few years there have been all kinds of rumours about a new Splinter Cell title and now Splinter Cell 2018 was spotted on Amazon Canada. The product page does not contain any details about the game, but it does show the following handle "E3TomClancy'sSplinterCell2018_PC". This suggests we would see Sam Fisher return at E3 2018 this year and also looks to indicate, at least, a PC version.
Ubisoft hasn't confirmed any of this information and this should be considered a rumour for now. The last time we saw Fisher was in Tom Clancy's Splinter Cell: Blacklist back in 2013.
How would you like to see the stealth series return?