Yeah, maybe having Turbo T intersections at Shorehill, Lakewood, and Island Shore would be helpful and speed up traffic, along with a RIRO at De La Seigneurie. But the cons of a Turbo T would be that the traffic would have to rapidly merge into the left lane and get into the Right lane swiftly if they wanted to turn onto Lakewood from Island Shore. Therefore traffic may have to be slowed down to 70 in those areas.
Personally, Just reducing the amount of Intersections to two by making a RIRO at DLS and making Shorehill into a 4-Way Intersection and combining Lakewood/ Island Shore to a 4-way Intersection would be my safest. Or maybe even Shorehill could just stay as is. It would improve safety as there would be less lights to stop at and longer distances between Intersections. The cons are that it would add extra signal phases if it's 4-way Intersections. Just having 1 full intersection at Lakewood/ Island Shore and a Turbo T at Shorehill would make the route much safer.
And although this would create some controversy, but the De La Seigneurie and Sage Creek BLVD connection could happen. But like I said, it could create opposition from residents. But hopefully the houses could be moved elsewhere rather than expropriated.