So the End Of The Line update is coming very soon. The new crates are released and the beta map released. So let's hop to the hype train.
If you have not seen the EOTL trailer you can check it from here
So, the basic idea of the update and SFM: [DO NOT OPEN IF YOU HATE SPOILERS]
The End Of The Line map: cp_snowplow
LINK FOR A YOUTUBE VIDEO OF THE MAP:
(random video I found, all credit to "YOGSCAST Nilesy"
I have not personally played the map yet (yes, shame on me), but there are some easter eggs. One is a grave with Engineer's toolbox next to it. So maybe something bad happends to our dear Engineer.
THE CRATE:
The crate is a train wagon, it has a lock and the normal Mann Co. key doesn't fit the lock, so we will get the key soon. The wagon has something inside, but on a fast quick looks like logs to me. It is confirmed that we will be getting new weapons and cosmetics. New weapons are always nice.
That is all I can say. Also don't worry, it is not literally The End Of The Line, Valve will keep making updates to the game.
Have a nice day and tell me if I did good for my first forum post on Scrap.TF forums !