The arp needs an update!
It would be fantastic to incorporate the flexiphrase patterns and settings!
Check out Logic X arp 
+1
+1
Or check out Arpology.
I may be a bit scroogy here, but 399 is a bit steep just for an arpeggiator if you dont need another sampleplayer so I second the vote to get a better arpeggiator.
I got it on sale but agreed it’s expensive but there isn’t real competition. Seems like something Steinberg could do.
The arpeggiator Steinberg already have in Halion5 Flexphraser is ok and it should be included in Cubase.