Can weapon and missile hardpoints carry other tools like fuel tanks or electronic pods?

That is something, not those two specific things in particular, but again, not to give too much away, in the very near future we're going to start experimenting with some alternative options for what missile racks can carry.

You're, of course, talking about Invictus Launch.

Yes. So you'll see a couple new items that you can swap out, both on the exterior of ships, on the hardpoints, and interior. Some component upgrades and stuff. So look out for that.