The new features are tested on PBE Server

The new features are being tested on the PBE server and will appear in the coming period in the official server.

The new features are being tested on the PBE server and will appear in the coming period in the official server.

League Client Update Alpha PBE Testing

League Client Update Alpha returning to PBE!  With this, the League Client Update Alpha is open to all PBE testers! Both Summoner's Rift and ARAM are now available for testing with PBE LCU Alpha!

Here's a small gallery of screenshots now that the LCU Alpha is back up on the PBE:
                 

Early Surrender / Remake Option

[Early Surrender / Remake strings back on PBE, unsure yet if it is functional.]

Strings referencing an upcoming Early Surrender / Remake vote option have been re-added in today's PBE update. Typing the comment "/remake" in chat will trigger the vote but things don't appear to be fully hooked up yet. From the strings, seems like teams will be able to vote to remake the game if a player never connects to the game after champion select and no players are killed in-game.

Here are the two larger text strings:
     game_announcement_OnSurrenderEarlyAllowed

 "Your team has X seconds to remake the game because a player dc'd and no kills occurred. Vote to end the game by typing /remake in chat.
Only the dc'd player will take a loss. This vote can only occur once."

     game_announcement_OnSurrenderEarlyAccomplice

"To protect high-tier competitive integrity, your remake would count as a loss because the dc'd player is in your premade"

There are also a few other strings in there just saying vote failed and such.

Source: surrenderat20.net