According to rumours from the Lego Star Wars community, Episode IX is going to bring back Y-Wings and make Kylo repair his helmet, meaning J.J. Abrams' Original Trilogy Purism is going to resurge with a vengeance:
I do agree with you all that having Palpatine survive or resurrect himself in some way will render Anakin's self-sacrifice useless, but to be honest seeing Ian McDiarmid return is probably the only thing I'm looking forward to about IX now that I've seen this dreadful news. One of the (many) things that annoyed me about the Farce Awakens was that the sheer amount of Original Trilogy purism used to make it resulted in ruining the way that starfighters and the like evolved through the ages. In Episodes I-III and the Clone Wars we see starfighters like the ARC-170, the armoured Y-Wing and the V-Wing, which have obvious similarities to the Original Trilogy ships yet are still different fighters in their own right with different strengths and weaknesses - because of this, we can see that these must be the ancestors of the X-Wing and TIE Fighter and we can see how their designs were adapted in the 19 years between Episodes III and IV into their Original Trilogy form, as Incom and Sienar kept on tinkering with their creations to try and outdo the other when they took opposide sides in the Galactic Civil War. In the Sequel Trilogy, on the other hand, there is an even greater length of time between Episodes VI and VII (30 years), yet it is STILL X-Wings and TIE Fighters, when surely the fighter craft used would be the next step of evolution on from both of these ships, as the manufacturers continue to research how to get their ships to counter the latest developments in the enemy's fighter craft? At least The Last Jedi had some different ship designs, the TIE Silencer and the Resistance Bombers - the former at least looks like the next step on from the TIE Interceptor, and the latter is a new design reminiscent of WWII bombers (may not be the best design in the world, but at least it's NEW and shows the evolution of starfighters over time). Now it seems Episode IX is just going to go back to the crappy purist ideas of VII and bring back the same old shit, just slightly altered.
Same with Kylo repairing his helmet - at least in the Last Jedi they tried to have him going in a new direction by smashing the Vader wannabe mask and then having him kill Snoke to bring the First Order under new leadership, to have something NEW. Now in IX they're just going to go back to the boring Vader rehash that VII first created.