With the time, I think Broadsword could make a mix between coming back on old planets and release new planets with the assets they already have.
For example, we got Ord Mantel and Nal Hutta for a second time with new areas. So why not next time to add new planets using the assets they already have?
Examples:
Ryloth => use assets from Tatooine and Darvannis
Csilla => use assets from Hoth and Illum
Shili => use assets from Tython and Yavin 4
Kashyyyk (Shadowlands) => use assets from Yavin 4 and Zakuul (Endless Swamp)
Mustafar => use assets from Oricon and Belsavis
Dxun => use assets from Dxun and Onderon
Geonosis => use assets from Ossus and Darvannis
Rattatak => use assets from Tatooine
Dagobah => use assets from Yavin 4 and Zakuul (Endless Swamp)
etc
I find it could be a good thing to get sometime old planets with new areas and sometime new planets with this method.
Maybe using assets already in the game, we could get more planets.
But I really hope we will get more new planets now and in the future.