I'm aware that different research levels grant different robort entities, so, would it be possible to make them upgradeable using the game's planner?

Hmm, I'm pretty sure that would be possible (and simple), but I'm not sure you'd want to do that - the upgraded roboports cannot be crafted, they are automatically converted to your researched level when you place them, and the mine result is a normal roboport item. It might be useful for blueprints to downgrade though, so you can get a proper place request...

The issue I'm having is: When creating blueprints using godmode or some of those lab blueprint mods, the entity is stuck at its basic tier, and when copying the same blueprint on a real game, it still gets the basic tier, no matter what, even if I have max research at the time. The only way for it to get an update, is if I place it myself, without copy/paste, then create a second blueprint. I'm not sure if I can explain it better, but if I could somehow upgrade those before creating the blueprint, I don't believe I would have this problem?

this definitely seems to be a problem, being able to upgrade them through upgrade planner would trivially fix this, or perhaps add a bit of code that force updates every roboport once in a while? Not sure.

this definitely seems to be a problem, being able to upgrade them through upgrade planner would trivially fix this, or perhaps add a bit of code that force updates every roboport once in a while? Not sure.

quick note: i did find out that using blueprints made with vanilla roboports works as expected, its only when you make a blueprint with roboports with the mod active that the roboport states are an issue. Which is not particularly nice.