I wouldn’t count on it, the resort can be pretty inflexible when it comes to DVC point inventory.
For example we started one stay w/ a couple of nights in a 1 br. at Jambo followed by several nights in a 2 br. lock off - same view. I asked several times (at check in, night before move, & morning of move) if we were just adding the next door studio to our 1 br. & if so could we leave our stuff in the 1 br. & was told no - we were moving, so we dutifully packed up our stuff & left it w/ bell services.
We got our room ready text - we were given the same 1 br. + the studio next door - so we hauled our luggage back up to the 1 br. we’d left that morning 
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OP I see in another thread that you had one night upgraded gratis from a studio to a 1 br. during your welcome home visit - maybe you’re very lucky & you’ll be upgraded again, but generally it doesn’t happen & asking the front desk to mess w/ your points to ‘pay’ for an upgrade can lead to miscommunication & your points being messed up. If you see 1 br.s open & you want to remain in one best to just upgrade now.