If FMG offers a rail deal to AGO (but not to BRM or WNI by that...

If FMG offers a rail deal to AGO (but not to BRM or WNI by that stage probably), then WNI will be all dressed up with nowhere to go.

If FMG & AGO merge (as some suggest) to share rail, port allocations as well as preventing hostile takeover, then FMG has perfect ground (not that it needs one as we have seen aleady) to deny WNI a rail deal.

The longer it WNI takes to fully acquire BRM, the more vulnerable BRM will be and the more likely the China will walk away with NOTHING but stranded dirt.