soloQ in season 7 will have the most horrible waiting que's and here is why
as a support main me personally would never go into a ranked game willingly with 5 strangers. if i have the option to go into ranked with people i have established what their playstyle is
i dont know your playstyle, i dont know you favored champions (support is all about synergy here) now why would i go with you when i can go with someone i know what to expect? i remember the horrors of previous season soloQ as a support main ESPECIALLY as a support. sure it has gotten MASSIVELY better. but lets face it its still the least favorite role out there for good reason.
AND NOW everyone can select their LEAST FAVORITE ROLE which will ofc be support.
just calling it. i could be dead wrong but that's what i predict. biggest complaint with the champion select role "fill" was that you would get support 99% of the time.