Have been watching the fares for multi city/open jaw International for a January 2017 trip

Outbound TUS (flexible) 2 SJO
Return PTY 2 TUS

When I first started looking, about 2 months ago, fares were $600. They have steadily gone upwards.... Sigh. Today, restricted tix $750

The outbound is pretty cheap; it's the return from Panama that is the challenge

We aren't leaving for 5 1/2 months.

What are the chances (ha!) the rates will go down again?

Thanks for your feedback