We're doing NGS again? That's surprising.
All I know about CH148 jointness is that the program was slightly delayed and the budget was increased to allow them to quickly remove the ASW equipment and convert to something like a utility helo. This happened a couple of years ago. No idea about how fast "quickly" actually means.
For the JSS I'm not so much worried about the actual landing as what's required to support the landing. For instance, do the vehicles burn the same fuel as the ships? If not, some of the fuel meant for the ships will need to be offloaded. Also, what about supplies? There's only a certain amount of space on board for supplies. If they're carrying the ground forces supplies on the JSS, what happens when a frigates widget breaks and the spares have been offloaded?
It even gets down to food. Both soldiers and sailors eat the same food, but adding a few hundred mouths to the task group will make the available stores run down that much sooner.
I agree we need more JSS.
I don't think the CPF Mk 41 variant would really be necessary. The current version has 16 ESSM in single cells in the Mk 48 launcher, 8 on each side. That can be increased by either increasing the number of launchers to 12 cells per side (space and weight were reserved) or by using dual-cell launchers or both. Using both would give 48 ESSM.
However, the bottleneck is in the designation systems. The combat system architecture we're using requires the STIRs to track before launch and illuminate until the target is killed. That means the CPF is unlikely to be able to use more than 4-8 ESSM before a fights over one way or the other.
FELEX is supposed to reconfigure the ops room to allow a command function. It might be possible if the displays are replaced with something smaller, although they'll also need to find a staff locker for the staff and a monitor. Both the IC and 2IC of FELEX were previously Athabaskan CSEO's, so I'm sure they have an idea of what they want to do.