I actually have a few suggestions for the Lazytown server map changes...
1. cp_fastlane. A great map, it's a community map gone official. It's much loved by the competitive community and it's a perfectly balanced 5 point push CP map. There aren't many servers running it 24/7 and I have a feeling it would get much love.
2. cp_badlands, the exact same reasons as the things above.
3. cp_toyfort. We ran this server a few months back and it was full a lot of the time. It's a really quirky and interesting custom map that has a pretty solid fan base. It's a 5 point CP push map that's very balanced and can bring in good, long competitive games.
4. cp_warpath. Yeah, I know, I know, I was a warpathian. I loved that map like it was my own flesh and blood. But as far as I know, this was our furthest standing 24/7 custom map server we ever had. We had built a huge community around it and I know a bunch of people were really crushed when we let it go.
5. A no crits/dmgspread server. Everybody complains about crits, so why not provide them with a no crits server? It would be a stock rotation with RTV or we could make it a 24/7 server for a certain map. 2Fort IR could possibly work as that seems to be a wildly popular map.
6. A fun server... I know we have an in-house one, but what about a public one? We could put RTD on it or any other fun custom plug-ins that the community would like to try out. Airblast jumps, the TF2 grenade mod, friendly fire. Or we could make that modification to the Randomizer server. Of course, you'd probably want to remove HLXStats

It could run custom or stock maps, or a combination of both
7. A modification. Zombie mod, Pyro Dodgeball, Ammomod, cp_duel, sniper wars, TF2 soccer. Those always have a solid community that loves to play them. Plus they're a great break from the regular TF2 world. I would have said Soldier basketball, but methinks that wouldn't go over well with 32 people. *imagines dire chaos and rocket spam*
That's just my two cents, some people may feel the same.