It is remarkable to watch WG taking more and more fun away from this great game with every new patch!
As many others pointed out: Removing stealth fireing will not help at all. The DDs will keep their smokes for them self, the Akizuki will be unplayable and all the premium-player will demand a refund. Why should i buy a ship for 30 euros, if it can be subject to such changes the very next day??!
The main problem will be that the "hit and run" tactics, that made the game fast and fun, will be to expensive now. For example: You are in a DD with 13km range, you have a concealment of 6km, you outspot another DD and manage to kill it of fast. Usually you would disappear and might get away with taking this risk. Now you will still be visable for any ship in your range of 13km, so you will see the number of ships aiming at you going up, while 3 BBs and 2 CAs are focusing you for the next 30 sec. There is NO way any DD can survive such a focus. So PLEASE don't come to us later and tell us, that we just have to play better. I hate to say this, because i love WOWS so far, but if you keep messing with the game, i will move back to a nice singleplayer game with more consistency.. Just stop altering the main principles: DDs are stealthy but weak when detected, BBs are tanky and should not cry about some 100mm shells, and cruisers should be able to disengage if a bigger fish appears.