Well, that's strange. Why would they continue to push updates to the web wallet if they're going to deprecate it and release a desktop wallet soon?
My bad, the background image probably represents what
Trezor Suite (the upcoming desktop and Android app) will look like. Apparently, it's going to have
some interesting features like connecting to a local instance of Bitcoin Core or to Trezor backend via Tor. I have asked them for how long they are going to keep updating Trezor Wallet; waiting for a reply.