I always expected that these cars with low production run numbers would become orphaned at some point in the future. A DPF is an essentially part for a functioning emissions system and now the manufacturer has possibly left you high-and-dry with a car they can't provide parts for.
That's part of what makes me anxious about my 2018. The tuning and straightpipe to delete the DPF is expensive, but at some point it's possible the DPF could break down or malfunction to the point of needing replaced and a replacement might not be available. It puts you in a bind of deciding:
1. Do I tune my car now to delete the DPF and be secure that I won't have a problem in the future, or;
2. Do I wait until I have a problem and risk the chance that the tuning and straightpipe is not available at that point in the future?