The "classic" lit concept of this scenario was rather untenable: generations upon generations of cadets were supposed to be surprised by the events and the outcome, after which the instructors and analysts would pick their performances apart on psychological level. As if it wouldn't be an obvious telltale when they first heard the name Kobayashi Maru uttered, immediately exposing this scenario as the same that the previous batch of cadets had warned them about - and ruining the psychological value of the test.Having the Kobayashi Maru rooted in 22nd Century history is something I feel the show would've done.
The approach of this book turns it all upside down in a pleasant and far more logical fashion: everybody already knows what Kobayashi Maru is and what happened to her in reality. There is little or no surprise factor in the simulation: Saavik knows right away that she's playing the role of the late great Archer, and she just hopes against hope that she will do better than the man who botched it originally, against those famously insurmountable odds.
Of course, future Starfleet instructors will make things a bit more current and relevant - change the technological nature of the ships involved, move the action to the new Neutral Zone, and so forth. But the cadets will still come to the realization of "Waitaminnit, even though there are these differences, could it really be that they're putting me through THAT? Oh shit...".
Apart from that, yeah, I think putting the incident in the ENT timeframe is the right thing to do, and something Manny Coto would have enjoyed pulling off. I don't much appreciate some other developments in the ENT relaunch, but this one sounds like the perfect lead-in to whatever Romulan War stuff eventually gets written. Full speed ahead and damn the small universe syndrome!
Timo Saloniemi