Because of contract, cannot yet terminate 😅

As what I know, yes, that campaign is still ongoing.
If you're eligible, you can upgrade it through My Astro app, or WhatsApp Astro, or contact customer service.
Just asking to see if you're on the legacy pack or the new Astro packs... Cuz they have an ongoing campaign for legacy pack customers that allows them to swap to either Ulti or Ultra Box with no additional fee and no contract, subject to your package tier.

You can check on which pack name you're currently subscribed to, at myastro.astro.com.my or My Astro app. Login using the same credentials as your Astro Go account.

If you want to continue watching Astro via satellite dish upon taking up the free upgrade offer to Ulti/Ultra Box, you must tell that customer service agent that you want it to be in Satellite mode rather than in Plug & Play mode.
You must make sure they are aware of this before they create order in their system and assign a technician over to your house.
If you don't tell them anything about this, they will assume that you are okay with Plug & Play, and create your order as a Plug & Play instead.

Even if you try to Restore Factory Settings by yourself and select Satellite mode later on, there will be a lot of channels getting the Subscription Required message, and this scenario will always be there until you Restore Factory Settings back to Plug & Play mode.
So if you still want Satellite, better tell them beforehand.
If you don't stream On Demand content at all, they won't have the chance to "attack" you with their addressable advertisements.