I agree on that, burning supply is one of the most common factor that can affect the price, it will make the price rise not only in ethereum but also in some any other altcoins, looking forward for the most bullish ethereum after this hard fork maybe the effect of this will take place 2 to 3 weeks after this successful hard fork.
If it is possible that the effect of the increase can last up to 3 weeks after this hard fork, then there will be many people who will benefit because now ETH coin enthusiasts have started to increase again and have also started to increase again so that it is very good for everyone with price resilience that will be very good on ETH.
In my opinion, the price of Ethereum may rise to the next hard fork, which is probably even several months. Of course, it all depends on what will happen to the Bitcoin price and whether a bull run will come across the entire cryptocurrency market. However, I think that unless something very bad happens, the Ethereum chart will be green for a lot longer than 3 weeks.