The current satellite provides broadband.
The new satellite just has higher bandwidth. Apparently it's 500 Gbps, so you could have 100,000 broadband customers on it streaming HD.
These are the current prices:
https://www.farmside.co.nz/satellite-broadband-offer
Maybe the new satellite would cut the price in half but you would still have a data cap and less than 20mpbs.
The Starlink System is what you really want as that would provided uncapped data and max speed. But with anything with Musk it takes twice as long and costs double the price.
The reality is that satellite broadband is a meme - at least until 2030 anyway.
But I really don't know. This is more of a geekzone thing.