Suffice to say, should it be removed, it will be those even more junior who find themselves with 3 DXB-LHR's a bid period.
Therein lies the problem when you start chopping chunks out of the award, the result can be much much worse for a significant number of pilots and also the Company with rising fatigue/health/sickness issues.
IMO, the best result for the Company and the pilots under the LH award, would be to have the 787 under the existing award at A330 pay rates (perhaps with rotating seniority if majority vote). Any changes to conditions would be through the normal EBA process.
For some, the 787 would have the attractiveness of some overtime (the A330 has little), with the offset being rotating seniority. The A330 retains seniority for bidding to satisfy those who value seniority over every last dollar.