Because there is a big demand in Metaverses a lot of new Metaverses will appear.
But it is necessary to realise all planned ideas and create Metaverse.
In all cases soon it will be a lot of Metaverses and users will choose what Metaverse is better.
Now a lot of big companies create their own metaverses and actively promote them.
That is why metaverses so popular and many people speak about metaverses and are waiting their appearence.