If you want Cinnamon 2.8 in Trisquel 7
Here you go: https://launchpad.net/~moorkai/+archive/ubuntu/cinnamon
When Trisquel 8 comes out, it will have Cinnamon (and MATE) fully supported in the package archives. Something to consider if Ruben wants to switch the main DE away from the unreliable Gnome Fallback,
How is GNOME Fallback unreliable (I don't think th same will go for GNOME Classic should Ruben go for that anyway)?
I don't think Cinnamon should ever be considered as a default DE for Trisquel. MATE would be a good replacement for Flashback, though. I think jxself said that Trisquel 8 is going to be using MATE.
@onpon4: "I think jxself said that Trisquel 8 is going to be using MATE."
Yes, this is the post https://trisquel.info/en/forum/any-news-regarding-upcoming-lts-trisquel-80-lts#comment-84923
I fully support MATE as the default for future Trisquel versions as it is supported officially upstream.
As for my Cinnamon link, I wanted to make it known that older Trisquel users have an option to use Cinnamon if they want. The PPA is easier than adding the Linux Mint repos.