Hi there! I Really Love my kemper and I think that the whole effects department should get a serious update with some new effects.
Here my suggestions.
1. Precision Drive, its attack and sound perfect for modern metal.Definatly revolution in drive pedals
2. Mesa Boogie Mark/DC Graphic EQ, that will give the Eq responce at the exact frequencies and give a good compare for the Mesa fans like me.
3. The Rack Wah. If you can create, a wah that its exact like the Dunlop Rack Wah with the eq and many other options thats awesome.
4. Synths, all of us love playing with them, and if could make the Virus, give us some fun and creepy effects like Synths, Organ etc