Ridership is back up to pre-derailment trendline (i.e. slight growth);
https://www.wsdot.wa.gov/sites/defau...Report2018.pdf However on-time performance wallows at ~50% and compared to systems similar in 2010, like Hiawatha, Cascades is flat ridership/cost recovery-wise (rising slowly back to previous highs).
WSDOT was awarded a grant to replace the damaged and existing Talgo 6 trainsets (3 trains); "... The new train cars won't be ready until the mid-2020s, and state officials are working with Amtrak to find interim replacements. ..." Cascades does not run on the Point Defiance Bypass yet and is short the damaged train. Major harm done to the route by the derailment (and the victims).
https://www.kiro7.com/news/local/wsd...ject/977713443