Oh certainly, I'm sure they're trying to "hold on" to rides for as long as they can. There are a few rides that are reaching the end of their life (Figment/SSE/RNRC) that have either had planned or are currently being refurbished, but closing down SM & BTMR at the same time is a heck of a capacity crunch.
My hope is that they just rip the band-aid and tackle both simultaneously as SM desperately needs it.