This means that now we have an option for ugrading, or flashing a bricked device (as many of you know, SEUS will now allow flashing device with an unlocked bootloader).
UK Generic .184 FTF file can be found here (This seems like it is same as World generic from my tests):
Put the FTF file in firmware folder of flashtool before flashing.
Start flash tool, and it will instruct you. Full instructions on flashtool can be found here, be sure to download latest version:
Thanks to Bin4ry and Was for creating the UK Generic FTF file with bootlader.sin for the Play.
Thanks to DooMLoRD for helping during the test of flashtool and FTF.
A last word of warning! Allthough this will flash the Play, there have been observations that Hong Kong Plays wont boot fully. This does NOT mean they are totally bricked. But may need HK version of stock firmware to flash.