Issit possible if u currently MX12 holding executive position, then boss inform that u will be posted to a higher job role, Assistant Director in this coming May. Then come June, u will be promoted to MX11 (which is the norm for AD position) Issit possible?

Or need to wait 1 more year for them to access u first to see if u fit for AD role before they can promote u to MX11? Or promotion can be instant once u take over high job role, means u will be promoted?