I'm assuming that Iafallo-Kopitar-Brown will be a thing for most of the season and then some combo of
Vilardi, Kempe, Carter, Lizotte, Frk, Andersson, Wagner, Grundstrom, Amadio, Moore, Luff and Athanasiou will rotate around the "bottom" three lines, the healthy scratch spots and the Taxi Squad
I get why people are paying attention to waivers eligibility, age and experience level and I'm sure those factors will be taken into account but in a season where you're obliged to carry at least 3 extra skaters on the taxi squad and there's an expansion draft coming at the end of a condensed schedule I don't see how they can avoid putting guys on waivers multiple times. I think you just have to cross your fingers and hope that most teams have their own transactions to worry about.
Plus I'm sure every team has their own version of bubble players.