It's started. First rumor is a time based sentai
Granted. Once in a blue moon it's on the mark and we get something like Kyoryuger when the trademark was revealed on September 5th
As with the pattern after an anniversary season there's usually three rangers
Past, Present and future?
-There's definitely going to be a dinosaur in the series somewhere
-Have the 6th ranger be from the future?
-Have prehistoric ranger. The Dino Charge comparisons would run wild
Also the suits would have a time limit. Since the suits don't originate from the time period they are in.