WB's reps were being sarcastic in that answer. Since Wonkagate, WB has released only Follow That Bird in non-OAR (unmatted and an old TV transfer). All of their non-OAR titles since then have a widescreen counterpart. I think the LBX European Vacation is a good indicator that WB isn't...
Grumpy Old Men was released in fullscreen because it was one of the first titles released by WB. The only way I think WB can do widescreen releases of these early P&S titles is to make a wave of "now in widescreen" versions without extras. I don't think an SE of Grumpy Old Men will happen...