Maybe next year if Thomas keeps it up.
Lizotte is one of the best 4th liners in the league by production measures, 35 points is fantastic for his TOI. He's also pretty durable, he's only missed a few playoff games and plays pretty much full seasons. It's a pretty big risk to put Thomas in there. Not just for production, but Thomas has had a lot more durability issues than Lizotte has had.
Put Lizotte on the third between a couple of scorers and he's going to be high 40's in points, possibly 50. He's RFA after this season, but he's still going to get a solid raise. It would still be difficult to swap them unless Thomas becomes a great bang-for-buck guy like Lizotte is. Blake is one of our most efficient uses of cap space right now.