Yes, they are similar, but I do not see Moffat doing a transmat malfunction on the fields of Trenzalore on May 17. Uttering The Doctor's name on Mount Sinai causing a rupture in time would be more like it.
Matt Smith is set to leave the role by the end of this year.
Who star set to bow out at Xmas, The Sun, March 22, 2013. I do not remember The Doctor ever regenerating during a Christmas Special. I am guessing he will regenerate before or 1 episode later.