Despite a tweet from a community specialist which hinted the contrary, EA's not working on Skate 4 right now. Chief executive Andrew Wilson confirmed the tidbit during an earnings call, joking that it's disappointing news for EA CFO Blake Jorgensen who's apparently a big fan of the franchise. Him and the rest of the Internet apparently.
It's worth noting that the publisher hasn't ruled out making a sequel eventually, and honestly, it could just be keeping the oft-requested fourth entry under its hat until its ready to reveal the release. Either way, this is one that there's evident demand for – especially after PewDiePie forced the third game into a reprint following his popular series of videos focusing on the title.