I didn't really pay attention while watching the live streams. But at the start of episode 23 Maki wants Date to get himself medically checked for more data on the Birth suit. Date tells him there's no need for it, but Maki tells him that it's important, especially in his case. Which indicates that there's something with Date's health.
There has been rumors about Date having an incurable disease, the first one who mentioned this was someone calling himself 855.
Episode 28 is the 1000th episode of all the Kamen Rider series and it'll be a special episode. - This has now been confirmed to be true.
Date has an incurable disease, he'll die and Gotou will become Birth. - There is something wrong with Date's, so this is one is possibly true as well.
The left hand of Ankh will appear.
Kougami has been pulling strings from day 1.
In All Rider, there will be a new combo. Hawk and 2 other, the combo name is TaMaShii.
Also, enough with the TaToBa Ringu rumors already. The guy who first posted about TaToBa Ringu said it would be in the toy catalogs. It wasn't in it.