As I was worried about them possibly running out of parts if the 402x is discontinued, and have wanted to have my cables shortened on my 4021s for awhile, I emailed DPA today about getting a checkup done and having the cables chopped (my current ones are 13ft).
DPA's response was as follows. Doesn't look like the 402x are going away. Also - pretty nice to offer a free checkup. I believe for Schoeps it's quite a bit more.
"Thank you for thinking so highly of our mics. As for service for the 4021 that will not be stopped or discontinued. But if you still would like me to verify them I sure can. I do need to issue you a RA#. If you want me to shorten the cable I can do that too. If you have your cable shorten I will not charge anything to verify the working order, just $25 for each mic you want shortened. For I will not need any new parts I can use your current connectors and re-solder it to your desired length. Please let me know you would like to go through with it. I will needs a little more info from you to issue the RA#, like return shipping address, and phone number. Once the mics arrive our turnaround is approx 5-7 business days.
Sincerely,
Shan Siebert
DPA Service Department"