I hope XRP, LTC and XLM have potential to look in to by Elon Musk. But no body know for sure, but I think he will take high cap coin that in the 10 ranking on CMC. Maybe the way to make profit is to buy and hold these 10 top coin for each 10% portfolio.
I hope he please does not! I am a Litecoin holder and I think it is doing fine already. Charlie Lee gave up his so that he would never hold so much and the coin would not have the problem of being concentrated too much in the hands of the few like Dogecoin. Elon goes there I would be very sad.