Ok guys to put all your worries to rest. Samsung will almost certainly not give up on android. Their going to most likely strip android to the basics again and theme everything from the ground up. Just like last time, the time before that, the time before that, etc. Whenever a major upgrade came out they just went with it. All android l is a 3rd coordinate in the os for depth, new re-aamped animations and a new api level. It's nothing for the tons and tons of devs and designers at samsung to take on. Give it time and they will probably release their version of android l. And no, touchwiz is not just a launcher, it's a launcher, a whole new framework jar, and a whole new system ui. Also take into account what they've done to the settings. Tabs, a grid, more options all of it. It's not that easy to build everything from the ground up but it will be done.