We are certainly hoping to have them. :)

Both of them would be a great addition to the game, but achievements in particular can become a bigger deal than first imagined; the issue isn't coming up with them, but more in building the system to track them. Very often the more awesome the achievement, more work it takes to accurately track it in-game.

That said, we are currently noting down any cool ideas for achievements, so feel free to post yours too! :)