The narrow body jet clause in your EBA is but a
shiny trinket designed to divert your attention from the real issues at hand: Lifestyle, work rules and remuneration.
There was talk of Eastern getting jets way back when I joined
in '94 (Southern Australia jet operation notwithstanding).
Just before I left
in '08 I remember Sooty stating that Eastern and Sunstate will
always be turboprop operators, while Cobham will be the Qantaslink jet operation.
Since then, you have Network making it onto the scene as well (as a wholly-owned subsidiary) with an RPT licence. I think it's patently obvious that the "fight" over 'jet flying' will be between those two groups in the not-too-distant future.
The best thing is to move on from the jet furphy, and do what you guys do best
If you want to fly a jet - apply to a company that operates them.
That's where the smart money's at