Why would EA and Bioware take a risk on rebooting SWTOR? Their first attempt would have netted them a loss, if not in real terms then definitely in opportunity costs. It definitely dented their share price at the time. At this point they're keeping it on life-support in order to eek out any margin that is left. Then they'll bury it and probably never talk of it again.
I know we think 'yeah just reboot it!', but it represents significant risk to a company which tends not to take risk. Hence 'FIFA 17', 'Battlefield 1', 'Battlefront 2' etc - they're low risk and high profit titles. Building a new MMO requires significant investment in infrastructure, developers, analysts, marketing, designers etc. It's a massive lift, especially for something Star Wars related which will have to be big from day 1 to accommodate the initial demand.
I find people on here to be naive to the ways of both business and game development. Seriously it's not as easy or simple as people want to assume.