Board Thread:Speculation House/@comment-32347396-20171002044114/@comment-26397825-20180429072613

It was less 'he had no use' and more 'RT has no self control'. They killed Roman because there was no way for them to slot him into the extended story when he'd literally already overstayed by three seasons. He was only intended to be a small time, done-and-dusted enemy and not anywhere near as involved in the show as he became. However MK loved writing him so much they had to add him into more scenes.

Basically, MK have no self control and couldn't leave him alive as a background character and uninvolved in the plot so they killed him to avoid screwing up future plans trying to bring him back in.

I actually sat down one day and worked out a bunch of small changes that not having Roman in the plot would have brought about. Such as Watts being the one on the Atlas ship in BoB, which introduces us to the idea that there is more villains and Cinder is not the big bad before the end title Salem reveal, as well as setting up that he's Atlesian early (and possibly even being why he's disgraced now as opposed to Raven simply telling us he's a disgraced Atlesian Scientist). That way the reveal of more 'inner circle' Salem minions (only two more in this scenario) doesn't come as such a surprise in V4, since we've already got a hint at there being others on Cinder's level in V3 when shit went down.