Max Starknet TPS?

Mostly TPS at Starknet now sits under 2TPS and there are already warnings that the network is congested.
I was trying to find more information on what can we expect in the future but I have only found some vague statement that Starknet should be able to handle roughly Solana TPS (at the time 3000 TPS).

My question is. What TPS can we realistically expect from Starknet in 6 months, 1 year, 2 years and 5 years?

ZK Layer2 is very early stage right now, the already now zkEVM network TPS is all below 2. There is still a long way i think.