Yeah I'm about to hit LTG and in the same boat - and that's even with the 1800 SC rollover I'll get.
In 12 months time, knowing that I'll be soft landing to WP, there may be some incentive then.
Aside from perhaps upping the annual SC level and perhaps a once off boost to the LTG SC requirement, I really can't see QF stripping lounge access, et al, from SGs.
My primary concern would be partnerships drying up, such as EK and god forbid, OW.
I'm WP based on my BAU travel trends - Tech Consultant. The jump to P1 was just me going a little crazy during the last DSC promo. This was great value and now I'm on final approach to the best (realistic) insurance policy on offer: LTG