Below is a video of Birkat HaChama in Modi'in.
There was a big crowd - I don't know how many thousand people attended, but the crowd exceeded expectations - they ran out of printed sheets with the Nussach.
The sheets that they printed included both an "Ashkenaz" and "Sfardi" Nussach. Both of which were different from the printed texts that I linked to in earlier posts.
BTW - Shecheyanu was recited by both Rabbanim HaRashim, but they emphasized that they were wearing new clothes for the Shecheyanu.