Since the new BP has a x3 daily reward for his Premium Topic, it gives a big boost for its value, but by how much?
First lets assume you buy directly the Premium topic, with a discount and costing 1280 Silver Prime (instead of 1460)
I'll remove the cost of buying Advanced Topic, which has good value albeit removed the materials and replaced with Roses Scripts, in which case you use the new Roses Scripts to buy the said materials in the store now (I didn't do the maths, but seeing from afar, it seems you get more materials this way than before)
So with the discount in mind, buying the Premium Topic alone would cost you
1280 (Total cost) - 680 (Advanced Topic cost) = 600 Silver Prime
It unlocks the x3 daily reward along with giving you 1460 silver. I'll remove the silver given by Advanced Topic, which is 680, so we're left with 780 silver given by Premium Topic.
With the x3 daily, you'll net an extra 2 Pure Core and 120 Silver compared to the usual amount. We'll ignore the Pure Core and focus on Silver only, and assuming you do your daily everyday until the end of the BP, which lasts 28 days as of today, you'll get:
28 days x 120 silver = 3360 silver
and adding 780 silver from buying premium, you get 4140 Silver in total
If you convert all your extra Silver to Luminous Core, you get
20.7 Luminous Core
an average cost of 28.98 Silver Prime per Luminous Core (which is slightly better than the 2H FOMO Packages costing 360 Silver Prime for 12 Luminous core, or 30 Silver Prime per Luminous Core)
It's now up to you if it's still worth it based on Luminous Core alone, there are extra benefit of course but they don't matter as much as getting Luminous Core. Do the rest of the maths if you care 