I posted in my own Galciv2 wish lists multiple times that I wanted LOTS more specialized planets. Or more specifically, lots more specialized tiles, and more importantly lots more different KINDS of bonuses. i.e. instead of just the vanilla +100%/+300% research/manufacturing/farming, you would have continuous scales of bonuses (e.g. +74%),
First, some people want less bonus titles per planet so it'll be a little hard to please everyone. You can always mod some bonuses (I think so) and SD can give us an option to set-up the bonus quality and/or quantity in the same screen in which we set-up galaxies.
Second, the star-port is going (or planed) to be an entity completely detached from the planet, more like an star-base, so, some bonuses worked better with the star-port being in the planet. For this case asteroids would work much better, giving bonuses to the star-port it is attached (+%hp, +%df, +%soldiers, etc)
and things like +% planetary defense tiles, or +40% mass drivers, +%ship-production-only, +53% armor, +10% asteroid production, +1.5% population growth, +10% tax revenue, et. al.. Like you build an Entertainment Center on a +10% tax tile and the planet gets +10% tax for the same population. And even bonus asteroids which give bonuses to starbases.
Speaking of which: I love asteroids. I wanted a whole lot more of those as well.
% planetary defense would make a lot of sense if we have something like "barracks" or a military complex in the game, but at this point. . .
%mass drivers/armor too powerful or completely useless, according to you research or your enemy defense/weapons. Also, something like this would make balance a little hard to achieve.