I could only suggest holding some ethereum while selling the other ethereum and holding back to bitcoin. I think ethereum has an opportunity to grow, especially if the next update is running better as people will see how good the next update is. But if the next update isn't what they're looking for, ethereum will need much longer time to get back up. It will be up to you to hold some ethereum and sell it or hold all ethereum until the next release of the update. I believe it has a lot of potential to make people profit