I mean, aquatics sounds cool and all, but now that I think about it, I don’t think the concept works.
Aquatics are obviously meant to be water focused, as having them spawn like a normal creature defeats the purpose of them being aquatic, but the game couldn’t possibly run a way to get aquatics to spawn in water since a) Google Maps isn’t entirely reliable, it’s screwed up a lot of turns around my neighborhood, and then there’s the fact that hidden parks exist, b) there wouldn’t be a way to reliably access a water source, since most people don’t live right by one. Take me for example, the nearest water source for me is a 1/4 of a mile away, (about 0.4 km for my non Americans), but that’s privately owned. The nearest publicly available water source is a reservoir about 3 miles away, but there is horrendous reception that far into the backwoods and its not worth risking my phone for aquatics when the only way onto the water is kayaks or the like. And I’m pretty lucky, imagine if someone lived in a big city, or way out in the middle of nowhere, or just not right by a water source. They’d possibly have to drive miles to get even close to be able to get the chance to get aquatics.
And that’s just from an exploration standpoint.
Gameplay wise, 2 separate arenas would further divide an already smaller playerbase, and that’s doesn’t even mention the balance. If they have a separate arena, do they get they’re own balancing rules? What about hybridizing? Will an aquatic’s hybrid be better than a Jurassic? How about balance? Rewards? And don’t even get me started about how trophies would need to work.
And then there’s optimization.
JWA isn’t a very optimized game. Quite often load times get worse the longer the game is running, icons don’t always show up at the correct time, and there are a ton of random lag spikes, and I run the game on one of the better phones on the market. Imagine what it would be like on a weaker one.
TL,DR: I just think that aquatics would be too much of a headache to make them worth adding, even if it would be cool.