Last Epoch has the potential to be as good as Path of exile as an online multiplayer ARPG, or even better than Grim dawn as a spiritual successor to Diablo 2 as a solo/co-op Experience, and even now it is even considered roughly on par in terms of quality with Wolcen among ARPG fans and Last Epoch is only early access. A lot of us have seen a fair few ARPGs fail from trying to achieve too much or going in the wrong direction, and Last Epoch has the chance to turn into a quality game that make itself on par with both of the above examples, But i don’t think it can go both ways. Based on the update Forecast it could still go either way,.
So my thoughts on how you could improve Epoch overall is to know what experience you’re looking to deliver and create, whether that’s a Online ARPG like Wolcen and path of exile, or a Solo/Co-op experience along the lines of Grim Dawn and Diablo 2 and double down on making the best Epoch you can in which ever way it goes.
My own subjective opinion this topic is: I’d love to see it develop into a Grim Dawn/Diablo 2 Style game since i think it could develop a campaign experience Solo or Co-op that makes it stick out among Older ARPG fans of Diablo 2 due to it’s skill tree system and crafting system.
i think it could still succeed as a Online ARPG, How ever i think it would pull away from world evolves around you experience, an example of that would be allowing you to have access to a global marketplace and being able to buy with either ingame or out of game currency high tier gear via this marketplace would remove the need to find or even craft gear as over time the auction house would become more and more diluted.
Tldr: It’s in the middle ground of Path of exile style Online ARPG and a Diablo 2 Classic ARPG, it could go either way but if it tries to go both it will lessen the experience overall.