If I were you, I would sell now. Pay the low taxes now vs. the much higher taxes later.
Furthermore, the EVEP shareholders are counting the chickens before they hatch. 5% yield is not bad overall, but pretty low for MLP. Diversify your profits into beaten down assets which are likely to bounce back.
That's what Markets are: Sellers and Buyers. I stay with my winners and sell my losers. I gladly pay my taxes on greater gains. If I make a 30% gain e.g., I'd be paying 15% ? or the profit. Still waaaaaay ahead. Don't let taxes cloud your judgement. Anyway that's MHO.