Africa-US reroute on non-SkyTeam carrier:paid vs. flown mileage

If I am flying on an award ticket (O and X) and rebooked in J as shown on delta.com (because of IROPs), will I earn J miles?



Sorry if this post isn't concise. Am in XXX in Africa with little internet and on an iPad keyboard.

Route: all J on miles

XXX
AMS
ATL
XXX

XXX-AMS flight was delayed due to the airline's problem.

Rebooked on SAA

XXX
JNB

Then DL

JNB
ATL
XXX


The SAA and DL portions appear to be paid J booking class.

Couldn't reschedule plans in time to really commit.

Am now looking at other options.

Emirates has an angled flat

XXX
DXB

but then what looks like a great option with their new J product

DXB
IAH
XXX


If I take Emirates might I lose out on all the DL MQM if it really is rebooked as J? Or if I take DL will the system recognize the Paid class is an award? If I don't get any MQM, I'd prefer EK. Otherwise, I'd rather grab DL and the MQM.

I understand I can also double dip but need to weigh flying EK J vs losing all those MQM.

Thanks in advance and let me know if other details are needed.