Price action is very unpredictable in the short term. The Merge will be no different. Therefore, it is best not to try and guess what will happen, but to be ready for various outcomes. The positive contributing factors are strong, and hodling ETH through volatility is likely the best and easiest choice.
The possibility of a significant “sell the news” event appears low because of all the positive fundamentals.
BUT, suppose professional investors pump the price of ETH pre-merge, the likelihood of a sell-off increases. So it might be worth taking some partial profits >$2,200.
If the Merge happens to be delayed and price drops substantially, it could prove to be a good entry point <$1200.
Good luck out there!