Perfect time to give the Horizon's their "Mid-Life" overhaul. Remodel the interiors, remove the current interior lighting and replace with more subdued white/blue LED's, replace restrooms with the new RailPlan modules used on the California Comets, add long-distance seating and add window curtains. On the outside, repaint and restripe with the "new" Amtrak America Phase IIIb livery. Alongside the new Viewliners, Horizons that have been overhauled would be a chance for Amtrak to have a consistent single-level LD product and cleaner-looking train lines.Horizon cars on the single level LD trains would be a pretty good use of them.
Now only if we had a funding source for the overhauls and someone at Amtrak with the power to make something happen think the same things.