I forgot mobs AI ..mobs is a huge one its actually the main reason i stopped doing PvE. I dont think they understood how annoying it is fighting against intelligent players tht force you to be engaged in pvp and then going to pve to deal with really bad AI. The story script would have been fine if not for this. In fact the bad AI is why the story felt so boring not 100% with the script itself. However I think you are being unrealistic. Maybe its because you don't know whats reasonable to execute in an online game. Web based client, better graphics, better physics. There is a reason why downloaded games look better than web based games. Unless you want massive downgrades, streaming all that detail isnt reasonable. Upgrading graphics and physics isnt necessary and wont do anything to enhance the experience. For its time, GW2 is the best looking MMORPG. BDO came in later with better graphics, though the art style is completely different. For a small studio like Anet taking devs to develop VR is also not reasonable especially with VR not being mainstream yet. AI to be able to respond like humans? I dont know about that, also that is vague because humans do so many things in so many situations. They could make a vastly more intelligent AI. Maybe you are talking about something like OpenAI to look for optimal ways to drop the players health to zero with movement and skills. That would be interesting. One thing no one mentions is inventory management. This is also one of the main reasons i stopped playing. The filters, the sorting the salvaging. They could have done infinitely better with these things.