Yes.
A new map has been in development for quite some time now. The name of the map as well as the title of the update will be revealed at a later point, for now this teaser image shall suffice:
The map is very much in development still. I've started designing it in July 2020 already, as a thing on the side while working on new games (and my own new engine). January 4th I called the block based level editor sketch done as I was happy with it. Ever since I've been working on turning that prototype into an actual polished map, either full time or working on other games every now and then.
The main reason for map 3 being more work than map 1 and map 2 combined is not an absurd length - it is in fact a bit shorter than map 2 - but its core design principle: Multiple routes, long and short.
When you climb the island that is map 3 you choose your own path (at least most of the time). Every segment plays differently and offers a unique challenge, so if you get pogo-stuck try your luck somewhere else. While this new map is rather difficult still, I've tried to enable and allow for "saves" wherever I could. All routes and segments and platforms are as close together as possible without allowing major skips - minor skips are encouraged and have been proactively implemented into the design of the map. As a result, the challenge remains without being as punishing as falls in map 2.
The update will include new unlockables, a bunch of achievements, a new Pogo Legend rank and more. Some things which were originally meant to be included in the map 3 update have been patched into the game already, for example the reworked and improved replay system.
Additional (for now) experimental extra modes for map 3 and an additional outro might be released at a later point, post map 3 launch. The focus for now solely is on getting the new level done. This however can and will take a bunch of time still. I'll let you know more when I have an estimate for a release date.
As before with prior content patches this will again be a free update to the game. I only ask you for your patience, in case you are looking forward to it.