My bad, the background image probably represents what
Trezor Suite (the upcoming desktop and Android/iOS 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 how long they are going to keep updating Trezor Wallet; waiting for a reply.
Yep, that's preview of new stack, internally called "Suite". While we aim to desktop and mobile apps, we plan to maintain also web version for portable use (with WebUSB, you can use Trezor on the go, without a need of installing any software on the computer).
Btw would you mind to removing password to beta from one of your previous posts? We picked up just few beta testers and at this point we don't want average Joe to have an access there; the software is experimental and we want to control amount of people using it. Thank you!