1. Bringing the Acela back could very much so happen since Ryan has said they have been reworking the design.
Considering that the new Acela is almost ready, I imagine Amtrak will have some sort of goodbye ceremony for the current Acela as they did for the AEM-7. I imagine Lionel would love to cash in on that market when they do, especially since they have such a phenomenally detailed model, even if it had its share of technical gremlins.
But if they don’t, I still have my full Acela set I could be talked into selling for top dollar *wink, wink* when/if everyone suddenly wants to get their hands on one like they did with the UP Bush engine and the big boy.