I’ve been on Lemmy for about five minutes; I think that in time it could take a really strong market share from Reddit, because Reddit, even in its success, is kinda niche. The platform just needs to be functional; the communities are what makes it worthwhile. Mastodon, I think, will have a harder time as it’s attempting to ape twitter, which is by its nature a bit broader.
Honestly I’d be quite surprised. Hendo doesn’t seem done with international football (as much as I think his retiring would extend his productive years at Liverpool), so going to Saudi at this point in his career would be counter intuitive.