I didn’t make a post with Round 1, since most of the themes were kinda disappointing. My far favourites were 10 seconds, Alchemy and Space. Round 2 is slightly better, deciding was almost too hard!

Here’s the Round 2 summary!
Alternative Reality: I love digital things! *m* instaplus for me. Not the best but may worth a try.
Backwards: the first tough “sacrifice”. It’s actually a good theme, but I must ignore it to let others go.
Colonisation: might be too strict and not abstract enough, but I’ve always wanted to make a game with this theme. Within 48, I may even be able to create something unique.
Colours: since the “llamas can’t see colours” game (can’t remember its name, I found it on Kongregate) I’m able to give it a try! Not a strong argument, but enough for me to vote +1.
Consequences: for MiniLD maybe. Too abstract, if I can tell it.
Death is useful: sounds great but have no idea for implementation. I’d prefer something else instead.
Destruction: can’t give -1 for this. Needless to explain. 3:)
Glitch: I got a great idea once before by a glitch. I must do it if it wins.
Illusion: also for MiniLD maybe. There are some better ones.
Keep them Alive: sounds no more than “guardian simulators”. I don’t want it for a regular LD48.
Limited View: also nice, but next time maybe.
Manipulation: I can smell some sandbox features in this concept!
Metamorphosis: one of the best in this set, I think.
Protect your Enemy: sounds guaranteed mess for three oppontens. I love crazyness!
Recursion: seriously, what to do for it?
Rescue: since there was an “Escape”, it needs. Also, result can be epic easily!
Sacrifice: don’t want it now.
Silence: the lack of something significant. Must…be…done!
Trust: same as Consequences. Too abstract.
Underground: sounds something perfect for Ludum Dare 48!
Void: we have Space in the previous one. Nothing else to say.
You are the Companion: I’ve always loved staying behind someone stronger and helping him/her/it in games.
You play both sides: somehow, I don’t want it now.
Overall: best ones are Underground, Colonisation, Silence. Worst ones are Trust, Consequences, Recursion.
Can’t wait for the final result!