We say the 350/2s will find somewhere, but when one thinks about it where might that somewhere be? They aren’t suitable as a 318/320 replacement, Wales has nowhere, GTR seems to be getting the 379s, Anglia and LTS have no use for them, and Northern seem sorted with 323s and new. All that leaves is GWR displacing their 387s (what’s the benefit?), possibly replacing the EMR 360s (numbers don’t fully match), or conversion to DC and used to bolster the 450 fleet (but is this even possible let alone needed?).
If anything I’d say the 350/2s could actually be more vulnerable than the 379s, simply because the 379s have the ability to get in their first. Reality is too many new electric units have been ordered, we’ve already seen the 365s get binned at half-life essentially as a result of this.