The version on the Pi is 10.3.1 (released Dec 16th 2015), which is not the latest 10.x version (https://en.wikipedia.org/wiki/Wolfram_M ... on_history
) so I wouldn't count on an 11.x release
. But it looks as though the releases have trailed behind the desktop versions in the past(viewtopic.php?f=94&t=114118
), so it's still possible.