Inventory slots

Not sure if this is the right place to post this, but here goes.

I can see that stash tabs can be bought but is there anyway of getting more inventory slots on the character itself? The current backpack size is pretty miserable however I'm not even sure if it gets bigger during the game or not.

Is this something that may be planned for the store in the future?

There's no way currently to expand inventory, and no plans for it to be added in the future either.

It's meant to be small so you pick and choose wisely what you carry.

It's very much as intended. This game's design philosophy is all about choice, including the choice of what loot is worth taking and what isn't.