Option 1: upgrade x5 iii to x7 ii
+Good idea if an upgrade is a must.
You get changeable amps of which they have 4 already (?)
- Sonic improvements grossly overstated
Orion 2: pair up x5 iii with chord mojo/ other dac
+ if you ever consider using your phone as the source when traveling, (unhooked from X5ii)
turning it into a device that rivals most/all DAP's and has lots of power with an interface you are familiar with...the X5iii
Also Mojo works out as a USB DAC pretty easy and well iirc?
- You make the internal DAC and AMP redundant when using the Mojo. The X5iii becomes a storage device with nav screen.
+ The Mojo lets you sell a DAP and in the between time your mojo can still turn your phone or PC into a badass audio device
Summary
If you use your phone at all or plan to... wait a month to see if the Q5 is good. It's sounds like it might be really good. If not Mojo isn't going anywhere, it will be cheaper then too
If you really never use the phone with an amp or anything strapped to it then get the X7II