The next years in terms of timelines are very clearly well defined and make sense from a management point of view:
2025 - World Premiere Opening, Disney Tales of Magic
2026 - Major Disney Adventure World Opening, DAW Nighttime Spectacular
2027 - Resort wide 35th anniversary, Up flat ride opening, new entertainment, new parade for PDL (possibly)
2028 - 35th extension, new entertainment?, new PDL or DAW parade debuts?
2029 - Lion King Opening
The weakest of the lineup appears to be 2028, I could see them somewhat split the anniversary novelties between the two years to make up for that, either a new parade in 2027 for PDL and one for DAW the following year or just one new parade for PDL in either of the years. There have also been other rumors from said meeting including a Moana interactive show replacing Frozen in Animation Celebration, I could see this being a part of the 35th anniversary too.