clash of clans HD

They should make a separate clash of clan app with High Definition graphics (both android and ios) but still using the same server

This version will a similar graphic from the web page eg https://clashofclans.com/clash-basics/spells
and have real life shadows

and maybe the waterfall back?

I would be worried about lag and buffering

I'd think there'd be quite a bit of server strain, so I don't see this happening. The resolution now is fine and facilitates a smooth experience for all.