User blog comment:TheTobarMethod/LoL and its future audience/state/@comment-4199297-20130611165000

- your text about champions is a bit off: Riot switched to about 1 champion per 3 weeks, which means they won't hit the 200 mark for about 4-5 years.

- meta changes: meta changes are for a very, very large part something that trickles down from the top to the bottom, so a large influx of newbies/casuals will have very little influence on the meta.

Meta is all about optimizing and to optimize you need indepth knowledge, which is something most newbies/casuals lack. (for ex. League of Warmogs was caused by people realizing that the nerf to armor and MR meant an indirect buff to health as defensive stat.)

(I myself am a casual player with more interest in testing, theorycrafting etc. than in playing ranked...)