Will the skins be changing style with the new Summoners Rift
As I think most people should wonder if the skins now would change to fit the new rift, or would they stay the same and still fit in. Anyone that can help or link something please do.

As I think most people should wonder if the skins now would change to fit the new rift, or would they stay the same and still fit in. Anyone that can help or link something please do.

It's most likely those who are older and have not received a visual update will be receiving one so that it will fit that style.
The Skins have already been slowling migrating to this style. I can't recall the first but I want to say look at the difference between Darius and Quinn. They went from hard shadows and distinct lines to this more cartoon smooth shaded no black lines kind of style quite some time ago bud. Look at a model viewer website and go over champions down the timeline. Or compare Shyvana's old skins to her newer one. You'll see what I mean, Distinct black lines have been out for a minute, and smooth cartoon-ish effects are now in.
Comparison
Pay Attention to the fine lines and shading around the muscles/neck/face area on both models.
Look at how they convey details around the dragons underbelly and the main of shyvana's armor. It's completely different the darker lines being pushed aside for some more blurred type of painted look. Once again removing hard edges.
This is a fairly good example because toning is easy to see on skin/muscles. Look for yourself and see that much softer shading and depiction of muscles/hard edges of armor have already shifted to this new style. I personally am not a huge fan I preferred the more realistic effect of Darius, but I'm biased, as he's my favorite champion. :)