Prices will continue to rise for pristine examples, unmodified, low km's. If no new model Defender prices will rise even more.
Most Defender owners are in no hurry to sell. If you're patient you may get a bargain, but that will be rare and a low price for a good example will be above the original new price.
I think prices will continue to rise for all Defenders in good condition, especially because any new model, if it ever materialises, will be entirely different.
The Defender lineage has been broken IMHO. Anything original will keep rising in price.

