We are cooking up Marketplace to be the best it can possibly be before release, stay tuned!
Can you give a general expected time frame for the Marketplace opening up?
It was/is the foundation for another popular engine’s 
success and I am very much looking forward to the explosion of growth that it will do for UE4. When users start contributing their own assets/plugins, I think UE4 will improve and grow at an exponential rate.
I second this
I don’t have any info to share in the immediate term, but I’ll surely update everyone when I can 
Rest assured, we are working very hard to ensure that Marketplace is an extremely useful tool for you all.
That’s great to hear I’m really glad You are taking in consideration our needs.
Speaking of which, I have a little question, will be there a possibility to upload source files like 3ds, fbx, or png other than uasset?
Mixamo has something on the marketplace now (Unreal Engine 4 Twitch Broadcast – Animation and Mixamo Starter Pack Release Live from Epic HQ - Youtube)](www.youtube.com/watch?v=nghy649G7K0https://www.youtube.com/watch?v=nghy649G7K0).
I realise they are a special case due to their popularity, but the rest of the community would like some timelines.
Weeks, Months, Quarters, Years?
My gut feel would be Q4 at the earliest, but time will tell.
It’s not about popularity. It’s free content given to the community as soon as possible.
that water looks good