If you manage to get a full regeneration done, & you use the car to a point where the car can regenerate occasionally, you should be ok.
If you can't regen, you could replace the filter, don't know exactly how much, but I would imagine approx £900-£1000 genuine. Don't know if aftermarket are available.
OR
You could by a bypass pipe to replace the DPF. With this, you MUST have the DPF operation mapped out.
Where are you based?