I think a plan could be designed with the idea of concentrating on the needs of 200m (taking into account also 100m because of course this is the heart of every other sprint).
The plan could focus on speed/acceleration development in the first serious six-week cycle of training, the idea over the long term being that you start out developing maximum velocity, maximum pure power. Then you shift the emphasis along the line towards the capacity to extend the range over which the athlete can endure speed as close as possible to the race velocity/rhythm which will deliver your season goal(s).
I like both your sample weeks, but you also need to consider how you rotate into the days and weeks to follow. I also prefer usually to develop performance threads in a specific sequence: power (acceleration; plyo), speed (up to 80m), speed-endurance (split runs; longer reps approaching or at race-rhythm), power endurance (hills; combination plyo; sled, skip, sprint; plyo-bodyweight exercise and sprints circuit).
I still worry a lot about “dynamic stereotype” flat lining (failure to progress velocity) so a mixture of exercises, emphasis, distances, intensity, density, volume, recoveries, etc needs to be planned for as much as one might be able to anticipate the athlete(s) getting stale.
I’m open to being convinced that about two and a half weeks - says 17 days - emphasising primarily speed-development or primarily speed-endurance is as long as you would want to stay with one type of traiing/focus.
But one thing which needs to be emphasised is that in concurrent as with short-to-long or vice versa, ultimately you cannot avoid the need to develop 100m capacity and you cannot avoid the need for Special Speed Endurance in the way of (simplistically) a 200 to 300 performed at brilliant speed.
You get this capacity ultimately by spending some time training and/or racing at these distances.
All the split runs in the world will still require supplementing with full recovery maximum efforts over these distances to really make the athlete bulletproof. These are just my opinions based on my own experience but as I always must say, others have their own ideas which have also been proven successful. kk