Yes, I like this idea. BUT, it's too early to add this feature. At one point, the survival server will kinda die. You can't play survival forever, it gets boring when you've done everything you can. Now when we eventually stop playing on the survival server, you should add this. It's a fresh start with a lot more features. I've played a lot of modded minecraft servers/launchers and it's actually way more fun than default Minecraft. More minerals, building options, things to do,...
So yeah, I'm down for this but not yet.