You're asking way too much out of it.
Would be enough to return SoloQ and an apology from them to not listen to their players.
Hardcore reset is something to think about at another point in the future.
firing people because they made mistakes or worked on something that didn't work out the right way is a bad way to handle things
4k RP for free? As I said, an apology and returning the Queue we all loved would be enough.
Magma champer sounded good at first, but honestly, just like URF, 1v1 and 2v2 would start to get boring for most people, like dominion was - My opinion
release all skins in the game for 3 days purchase time - bad idea. exclusive skins are and should always be exclusive.
I'd change the last idea into: Some kind of marketing strategy. I'd agree to give everyone the chance to try out every skin for free for a weekend or so. That would very likely increase the income by a few %.
*Please keep in mind that are my opinions. Feel free to discuss about them as everyone thinks different