I thought the same, but I am seeing two issues -
1. Currently, We are authoring the "Copyright © 2017 ARCT Corporation" in Rich Text editor, which I am displaying in HTML. Now, how to break this string and append year(from java class) as you mentioned because "year" is in-between the String, after "Copyright © "?
2. And how do we ensure that that author can author rest of the part in Rich text editor except year?