Ethereum is already reached $210 price.. so I think there is possible that ethereum can climb at $300 before end of the year. Three months left that we can see ethereum go bull run this year hopefully.
it will all depend on what news will appear regarding the updates on the Ethereum network. if the project team starts to show good work, then, of course, we will see 300 dollars
If transactions will increase demands from users, that for sure we will experience greater results for ethereum. Expect more surprises when that happens on ethereum, meanwhile stay focus on what goals you have in mind.