World of Tanks Classic, once a separate client April Fools event was clearly a test of something much bigger which never made it to the public permanently. Based on the player numbers it clearly had some chance of being released as a separate game such as World of Warcraft Classic or Old School RuneScape.
After April 1st, 2019, when WoT Classic (0.7.0) was launched for 5 days it was almost never heard about again.
Although there were some hints in Well-Deserved Reward videos.
But apart of it, only a Q&A from 2020 mentioned this project and only in one sentence:
Anton Pankov (Product Director World of Tanks at Wargaming):
“Work on WoT Classic is progressing, but very slowly. I personally wish it was faster. Little priority.”
If you want to get nostalgic, you can do it here:
Some personal opinions:
Guessing, this seemingly successful project got discontinued probably because of various real-life problems such as COVID-19 and the Russia-Ukraine war.
On the other hand, currently, almost all the players are complaining about the state of the game. Apparently, everything WG does couldn’t match the expectations of their community. Even with a Classic Client from a seemingly ideal version of the game which isn’t “Pay2Win,” people would only voice their negative opinions about it. The average Joe would continue complaining about something no matter what.
Whether WG does something with the game, there will be a large number of people who will not like it.
I would take a question that couldn’t be answered with the logic of this community:
If nothing is good, what do you want?