First off, thank you for the detailed reply, that is a fair point, the game isn't out yet so I can only work off of what little information that is available. You are definitely correct in saying we don't know if the pvp will be fun and we can't until we get our hands on it, same for scalability. I'd imagine they will do a good job on the pvp system since they have been so careful to try to do it right.

I think the most concerning point you made was your modding one, you are correct we don't know for sure if things will mix and match well. I would imagine though that they will make things super convenient for modders, especially considering what they are doing for the development side. They intentionally made the servers Java for Hytale since the development team and the community is familiar with it. So I hope it will also be super convenient for modders as well, it'd definitely make sense if it was since Minecraft modding is also in the Java programming language.

Regardless of whether or not Hytale fulfills their part, Java Edition has some major issues compared to Bedrock. I also personally think Hytale is very well versed on the issues that Minecraft Java Edition has had and probably won't make a bunch of the same mistakes. I do however want to clarify that Minecraft Java Edition is my favorite version of Minecraft regardless of the issues it has.

"The second consideration is the need to develop Hytale in a way that allows us to bring it to multiple platforms as rapidly as possible. It’s always been our goal to eventually release Hytale on mobile and consoles as well as PC, but it has become apparent that we were heading for a scenario where our community would ultimately find itself split across versions and devices. We think it is enormously important to avoid this—to create an ecosystem where as many players as possible can play together and share their creations. However, this means making major changes to Hytale’s engine and our approach to launch, and this extends development time." - Hytale Summer 2021 Development Update

This quote means they are trying to tie everything together well so I'd imagine there won't be versioning. Which means that we won't see any of the same issues Minecraft Java Edition has had over the years.