This is just a random question as I'm not sure what SKW policies are with seatlock, transition, etc.
At SKW if you see you are getting close to an upgrade in about say 6-12 months and you currently are on the jet, can you transition to the EMB as an FO? Then once you have the seniority you can make the right to left transition easier (a/c familiarity-wise).
I'm not sure if you have the same bases for equipment as that would obviously be an issue in making that decsion. Just some food for thought.