My friend and I were thinking, will you be able to buy a house and upgrade it? A place to store your loot and such.
Would there be a door in a city that you enter and it takes you to your house?
Or will they just do away with the whole weight system and you can just carry your world in your invisible bag, endlessly collecting weapons and armour and junk.

I hope they do have houses, personally.

They will most likely follow the usual MMO way of dealing with this, a bank.

One can always hope for a housing system but yeah, most likely gonna be a bank when it comes to storage.

There will not be player housing at launch. It might be something they implement in the future.

We've only just recently been told that inventory is slot based. They haven't said anything about external storage for your character yet. But I'm guessing we will have a bank of some sort.

Banks are lame

Unless, what if you can break into the bank!

Banks aren't lame! Breaking into banks is lame... and illegal.