Not looking to shoot you down, but the current meta exists for a reason.
History lesson!
If you go back to S1, the standard meta was mage top, ADC mid, tank/sup bot and Fiddlesticks jungle. The thinking here was to give the carries as much a lead as possible. Often times support would just roam, taking only about 15% the experience from each lane (and being much lower level). While this gave the carries a lot of snowball potential (for the time), it was built around marginalizing the rest of the team.
Enter the EU meta after it won the S1 worlds. This is the standard 1/1/1/2 we see today. The thinking here was to maximize resource distribution across the team, instead of funneling to individuals.
Mages went mid because it is the shortest lane making it the easiest to escape from ganks. This also reduced how long they spent out of lane after backing for mana [potions]. Because ADC's scale more on gold than levels, they got stuck with the support (range has always been a strong in lane). Supports are still responsible for roaming to ward and help jungle on occasion, in addition to being the ADC's now private slave. Because dragons were worth a lot more back then, the ADC/sup went bot (as they were the strongest lane). Jungle was occupied by the 4 or 5 champions that didn't suicide to Chickens Wraiths. Tanks went top as they were generally durable enough to survive ganks, their durability steroids scaled with level (support utility, not so much), and it was the only spot left.
Season 2 or 3, Riot lowered the jungle difficulty. This allowed utility heavy champions to jungle and not just Warwick, Fiddlesticks, and Xin Zhao. By the time Alistar started chain-ganking everyone with 80% success rate, the jungle difficulty was re-adjusted and Alistar dumpstered. This returned the jungle to the sustain+damage master race.
. . . Enter Lee Sin.
Then comes S4, and the introduction of expendable Support income (OH THE HORROR!).
This meta [very] briefly saw a 2/1/2 meta. 2 tanky tops taking targon's, mage mid, ADC/Everyone bot. This meta abused the new income to force down early turrets with huge lane pressure. In response, Riot gutted the new support income making duo-top inefficient again and bot lane still viable for utility mages (almost erasing non-Janna support from the game).
Riot Also re-balanced support champions around AP "utility scaling" so they could use that new gold. But still nerfed anyone who left bot lane. Then left the scaling intact after gutting said income.
Next was the season 5 LCS swap meta. After the dragon value nerfs and turret value buffs, Turrets became the better all-game objective. Due to this, the LCS developed a system where they would send their duo lane (still the strongest) top to shift pressure away from dragon. This forced the other team to either meet them top, or trade top turret for dragon. To cease this shenanigans, Riot turned bottom turret (and only bottom turret) into wet rice paper for the first 10 minutes. This meant sending the duo lane top would cost your team both dragon and bottom turret.
Hence the "gangbang bot meta" - where sending everyone bot at least 3 times before 10 minutes was a tactical requirement.
There were a lot of smaller scale meta shifts (10 ADC's per game, anyone?), but those were all I recall messing with the lane distribution.
(I feel like I'm forgetting one.)
So what does this have to do with your suggestion to change the meta? Well it highlights a few problems.
- Riot enforces a
stale "healthy" meta, despite their claims to the contrary. So if this does catch on, Riot will likely "fix" it.
- Although I think they returned some of the durability, bot turret is still the weakest one early game. By sending your duo mid, you reduce the defenses on your weakest front. In exchange, you increase the pressure on the easiest lane to roam to and defend.
- The extended top lane puts immobile mages in more danger. With League's CC and mobility
sprint creep, this could potentially push them out of the game.
- F Support champions. (>_>)
