New Track Design

[ScotsBrutesFan]

You seem to be ignoring the fact that leaving the pits will be going straight into the racing line.

Given the nature of the design, if the end of the pitlane speed limit is at the blue line I've indicated, then cars leaving the pits will be travelling faster than those on the track accelereating off the hairpin apex.
Assuming that a driver is looking in the direction of the arrows (ie where he's going) he may not see a faster car coming out of the pitlane.

To go back to Luiggispeed's version, yes the wall would need to extend a bit, but an accident that far around the corner is unlikely.
I've added to Luiggispeeds graphic showing how safe that exit would be, even more so with the added "don't cross" line. THe next corner is right handed so the racing line (in Yellow) is on the left of the circuit.

The suggestion of an accident victim being collected by someone coming out of the pitlane, I'd say was would be much higher with this latest revision (site plan 5) than Luiggispeed's.