Actually I believe Westjet is in the process of transitioning from an LCC to a full service network carrier. From their Investor Day yesterday:

".....We continue to invest in strategic initiatives that will support our transition from a low-cost point-to-point model into a high value-based network airline with a global footprint," said WestJet President and CEO Gregg Saretsky...."

https://www.prnewswire.com/news-releases/westjet-investor-day-provides-targets-for-2018-2020-662263953.html

they are also planning on having both lie-flat Business and recliner Premium Economy cabins on their new 787-9s due in 2019 and are already building lounges at several Canadian airports...