Well, evidently there was an article in yesterday's New York Times, regarding (among other things) the possibility of Katherine Heigl playing Claire in a film version of OUTLANDER. It's not like there haven't been all kinds of rumors about everything you could imagine, over the last ten years or so--but this seems to have stirred up a lot of folk, many of whom asked me to post something on the matter.
Had a quick glance at several assorted articles on the subject (to which folk have been sending me links). All of said articles contain the usual amount of careless inaccuracy that you usually see. You really shouldn't get excited about any details mentioned in that sort of piece--like "Scottish heroine," for instance.
That said, I haven't ever seen Ms. Heigl act, but would certainly extend her the courtesy of waiting to see.