SIMBA getting acquired is the worst thing that could happen to SG. Still rmb paying $60++ for 4GB of data. Our economy is literally enabled by the internet and having 4GB only is actually going to push us into a recession. Temasek wouldn't allow SingTel and Keppel (M1) to do that.
Anyway, looking at their balance sheets they still have enough cash for just over 1yr of operations at current income levels. Plus their loss is narrowing every year so I think they can stretch their remaining cash for longer.
SIMBA is unlikely to acquire any MVNOs because their spectrum is already very congested (even M1 is more than 2x faster than them according to OpenSignal). StarHub might actually acquire M1 though, they already share a lot of infra and M1 has suffered a lot of price erosion over the years (although StarHub has very similar prices to M1 now with their promos).
Overall I think SIMBA still has a niche in the industry and caters well to their target audience (people who aren't sensitive to speed and heavy data users). If they keep growing their userbase like they have been doing I believe that they will be in the black soon, which will give them enough cash to avoid consolidation.