Can we make roaming from mid relevant again?

Prior to season 5, roaming was the #1 way you could carry games, because it let you give up some of your advantage to help out your team mates. In the current season, the best case scenario for a roam from mid is extremely unfavorable to the roamer. In most cases, it's not worth even attempting it, because you're risking a significant portion of your advantage even if it's successful.

If you leave the lane for one or two waves, you're basically giving up a tower. The enemy team gets a chunk of gold and you lose CS, in exchange for maybe getting a kill or two for your team. If your roam isn't successful (i.e. because the enemy has full summoners or someone didn't know where a ward was), you've just made a huge sacrifice and the enemy is even further ahead. If you don't have a huge advantage, your opponent will probably be even by the time you get back to lane.

This really fucks up mid lane and removes it's impact over the outcome of the game. You're basically stuck AFK farming because neither side can take the other's tower due to wave clear, and leaving the lane for a wave will ensure you lose your tower.

It's a lose/lose situation. You roam, give up your advantage, and give the entire enemy team gold, or you just stay in your lane and wait for your losing lane to lose it's tower, then lose your lane as the winning enemy converges on it.

This really should be fixed for the next season. It's way too hard to impact the game from mid lane right now, unless you're somehow stomping your opponent so badly that the score is something like 6-0.