As much as I support additional inventory space (a bait bag or dye bag at the very least) Sadly I just don't see it happening. I know they expanded it from HW -> SB, but the fact that they sell extra space in the form of hiring extra retainers with real money and people support that and use it essentially ensures this likely will never happen.

It's the same issue with housing. Why implement private instanced housing when you can squeeze people to stay subscribed to keep their homes? SE sees real money from these services and won't implement any solutions for this exact reason.