I wouldn't mind if Platinum were allowed to hold onto the reigns longer, and double down on Zero's timeline. Perhaps it would allow for Star Fox to finally cement itself with a developer and gameplay style, since one of Star Fox's greatest problems is that it's been passed between developers too many times with too drastic of views. Star Fox has been developed by Nintendo, Argonaut Software, Rare, Namco, Q-Games, and now Platinum. This, and the games each company has made, has caused Star Fox to go through an identity problem.
The problem I have with Platinum continuing with Star Fox is that I don't see them taking Star Fox in a direction where it can really evolve. Personally, I feel the best way for the series to evolve is to go the route of Assault. On-foot combat, a strong narrative, and multiplayer are all things I feel helped progress Star Fox forward. With the Switch's controls, a new story that can maybe span multiple installments, and online multiplayer are the three things I hope most to see with a possible Star Fox on Switch. Although the thing I want most with a new Star Fox game is for it to fly off shelves, and officially resurrect Star Fox.
Plus, continuing with Zero would result in possibly retconning the events of Star Fox Adventures, Star Fox: Assault, and Star Fox: Command. Adventures, although a marker for the degradation of the series, did bring a lot of elements into the Star Fox universe that it lacked, and brought us Krystal, who I really don't want to see be forgotten. Star Fox: Assault is one of my favorite games of all time, and I'd hate to see that game's story also be thrown away. Hell, even Star Fox Command brought a lot to the table with the universe.