He doesn't need a rest as much as his image does. This is his marketing tactic. Not sure who originally said it but PT barnum (how fitting) was once quoted as saying "Always leave them wanting more..."

I think it was kind of obvious to most people when he stopped at the record... that he was coming back. An ego like floyd's would never settle for a tie with someone else but he knew his popularity and his gimmick lost its luster and that was only confirmed by the berto sales. So he's waiting to be paid what he wants for 50.

So he disappears from time to time and tries to give people a chance to realize how much they "miss" him so that someone will pony up the 9 figures he's asking. he only said "9 figure" like 5 times in the interview (hint, hint). Meanwhile his people are filing for "TBE 50" trademarks and other preps for this. His early preparation points to whoever the 50th opponent is being rewarded in the pocket but royally screwed in the prefight stips to ensure everything goes off without a hitch.

He has to cash in while the current crop of fighters is still green / or largely untested and haven't become PPV attractions and steal his shine. Thurman, Porter, Crawford, Chocolatito, GGG, Kovalev and Spence are all more exciting fighters than Floyd. The only one who's actively cashing in on PPV is Canelo maybe and that's because he has a market all to his own. Pac is retiring, If everyone put their stones on table and turned it up 2 notches the world would have moved on and Floyd would be the odd man out. BUt stuff like the Pac/bradley 3 arum in house money grab and Thurman delaying the porter fight by playing evil kneivil in his prius, the many moods of Tyson fury, Saunders flip flopping with GGG, and all other delays for unifications and more exciting fights that could be happening have kept this window open for Floyd to do his tease routine.... again. I wouldn't be surprised to see him bump it up if there is a particularly disappointing fight or negotiation (Like canelo refusing to fight GGG) or Thurman/porter ends in a NC due to a headbutt.