Amusingly, it's a greater displacement than a T42 Batch 3. It's a not exactly a T21 frigate - not necessarily a bad thing, but the RN need to think pretty carefully about this as if there's a bill bigger than say £500m each then they're likely to get.... not a lot.
Really, one assumes that the RN need probably 25-30 FF/DD hulls, which with 6 (Count 'em!) T45s, either they need another 6 T45s and then a build of 18 T26s at one every nine months or so. Alternatively six T45s + 22 T26s.
However, can't see it somehow. Too bad for the fisheads, and the rest of us.
S41