Reddit will still be around for a good long while after this I'm guessing, unless the IPO offering goes completely tits up, it may be a long, slow decline, or none at all even. However, just given their attitude in all of this, they'll likely be pushing people away on a regular basis with even more bad decisions until they it hits a critical mass and people just migrate to the new popular site/app. Whether it's Lemmy or Tildes or Mastodon or whatever, another platform will likely take the crown from them.