I was wondering if there was a way to make it where Anomalys could re-apear thought out the game
As long as you're playing DA 1.7 or later, they respawn. I'm not sure if you would be able to make them respawn faster, though.
If you're running TA, launch the launcher, select editors and go to planetary, then create your improvement and in the Bonuses tab under Unit Bonus to Planet, put an absolute tile value in the Planet Quality field. This will increase your planet by a set number of tiles.
If you want an improvement to grant a planet quality bonus to all of your planets, under % Bonus to Civ select Planet Quality as the Ability and put a value in Ability Amount (for instance, 10). This is treated as a percentage modifier.
If you're running DL or DA, you can do the same thing via XML for the latter, and I believe the former as well, although I'm not positive. The tags you're looking for are <PlanetaryQualityChange></PlanetaryQualityChange> for the first instance and <AbilityType>18</AbilityType> for the second, where you'll also need to specify a value in <AbilityAmount></AbilityAmount> tags.