Have you seen Infiniverse project? It might be serious competition to Arcona. They are going to offer roughly similar services as Arcona, but on EOS platform.
This project is mostly concentrated on VR, whereas Arcona is an augmented reality platform that digitizes the whole world.
That is not true. Infiniverse is about Augmented Reality, very similar to this one. There are some differences, for example ownership of the land is to be renewed each year, but they also are supposed to have some specialities as attached objects (virtual pet), private objects and so on.
They are behind Arcona, just at the beginning, but looks convincing.
Just to be aware that competition is here.