VWA has already brought in the Tig118 FWD so with the 132 and 155 that already makes 3 levels. I suspect that bringing in an R-line would just take away sales from 155 buyers and not from Honda, Subaru, Toyota, etc.
Which is how I think VWA would look at it. Even though I would love to see this model arrive here I suspect there's not enough differentiation to make it happen.
Unless it gets brought in for a mid model update to bump up sales.