So... we are back from a cold death of the universe hypothesis to a looping universe hypothesis only this time without a big crunch where a new universe just bursts into existance and painting over the old one?
Does that mean, that older universes could theoretically be seen if we had FTL telescopes to see past the "edge" of the current one?
What's an FTL telescope when it's at home? That's science fiction, I'm afraid - for the moment at least.
Roger Penrose and Vahe Gurzadyan looked for and claimed that they had found signatures of previous universes recorded in the CMB, but the statistical methods they used have been criticized.