I am so glad to see the Game Jams will continue, you never let us down Epic n thanks Chance for keeping us going.
Great to hear Allar! your stream is about the same level of fun as the Game Jam itself imo. nothing like watching you struggle with some abomination I created. 
Since the great news by Epic of dropping the subscriptions, and the publicity from GDC, I believe there will be many more that will be joining us now. (or in the near future)
I do have some suggestions or hints for anyone planning on joining in the Game Jam:
Hints & Suggestions for Game Jam:
Start now, don’t wait! Although you can’t work directly on the game itself until it’s announced, you can get setup for it.
—Think! I dumped more ideas than I’ve ever used. You might have a super great idea but do you have the Time & resources to pull it off. Be realistic! Think about it!
(*** Planning & being realistic is just common sense, you’ll thank me later.
- Keep it Simple! You can always add stuff as time permits, get that gameplay working!)( BTW Don’t throw away those great ideas you came up with just because you don’t have time for them now, write them down! In another scenario that idea may be the great game you were looking for. You’ll Thank Me Later! lol ***)
—Don’t use the Starter Content ‘option’ when creating your project! This doesn’t mean not to use the actual Content (UE4 has great stuff you can use) but unless it’s changed recently (engine doesn’t recognize or removes unused resources at this time) it will bloat your projects size, at times making it several GBs instead of MBs which will take longer to build, package, zip up (compress) & for someone else to download.
(*** Best thing to do is to create a dummy project with Starter Content option. Then merge materials, effects, sounds, etc. that you might want to use from other projects or create yourself. Then you can just ‘Merge’ them straight into your project or any other future project as far as that goes. The Content Example Project (as well as the Features Tour) from Epic is a great source to get ideas and even resources from as well, it can be found on the Learn Tab of the Engine Launcher, download etc. Use it! All good stuff! ***)
—Create a Menu of some kind. Even if it’s not an elaborate 3d AAA game menu, it will help a lot to have at least a start & quit already made for your game. A Pause would be nice too btw. lol 
(*** You can always add other options etc. to it if time permits later.)( & Use UMG silly that’s what it’s there for***)
—Build & Package a game, any game, even use the template games if you have to. This can take a while to get right, so just do it! And after you package it then Run It!
(*** This gets you used to the workflow of packaging the game and being ready to submit it, I would also make sure I could zip it up real fast too! Thank Me Later! lol***)
—Create a Google Drive account or any other that you can upload your ‘Zipped’ game to so others can download it and make sure it works!
(*** Individual websites work for this, just make sure you have the bandwidth & can create it fast!***)
—Give your Packaged Project a unique name, as much as I like watching Allar struggle with 4-5 WindowsNoEditor packages (Fun Stuff) you will be surprised how many projects wind up with the same name. Even if you think you’ve come up with some super unique name no one would ever name their game, trust me you haven’t! ie: AyretekSuperNewNameGame
—Make Plans! If you are serious about making a game submission tell others you’ll be busy, if you are worried about work or some other event just tell them you’ll have a horrible disease and won’t be available that weekend, the Bubonic Plague should do nicely. Although the name ‘Black Death’ always appealed to me as well.
(*** The only time people really notice that I am alive is when I am trying to do something, especially Game Jams! Throw your phone out the window & tell everyone to send messages by Carrier Pigeon if they need to contact you! ***)
Remember Don’t Wait! Do It NOW! and see you all in Allar’s Stream!
(hopefully & if I can make it)
Good Luck to All !
( if you make too good of a game, i’ll be over to your house and delete it for you! gwahahaha! )