Yeah, I wish there was some advancements made when it came to trying to create swappable battery devices that retain water proofing.

If nothing else, regulations like the one described in here will do just that. So far the tech giants haven't had any incentive to design sleek, waterproof devices with replaceable batteries. But you've gotta believe that if they're required to have replaceable batteries, they're not going to say "OK, back to chonky non-waterproof devices for us!". They're going to spend some of their R&D budgets to innovate ways that makes it more realistic to do all three.

The original Moto Defy got it right the first time with ip67 rated, removable battery, expandable storage, and a headphone jack. The next major improvement came with the xperia z(or z3) and they got waterproof charge ports and headphone jacks (no port plug required) but ditched the removable battery. Every other phone since seems to have stripped away some useful feature since. The new defy 2 is going to have satelite messaging but is huge and no removabpe battery or headphone jack iirc.