To make J-Space more interesting to new players there should be a clear sign of risk vs. reward.
If you live in 0.0 you could do more money than someone in a C3, and it’s a lot safer.
In my opinion you should boost the ammount of blue loot per site, not the value (I will explain why), so J-Space could be more rewarding.
Why more blue loot instead of higher value?
The ammount of blue loot is easier to balance, because you can balance a single site, or a single wh-class without touching the others. A C2 for example has nearly the same risk as a C3, but a C3 site will give you ~43 million ISK and a C2 site, wich takes nearly the same time, will only give you ~18 million ISK.
Sure, C3 sites are harder than C2 sites, but in 0.0 space you can do more money and it’s safer than in J-Space. In my opinion the values of sites should look a little bit like this:
C1: ~15 mio per site, ~22.5 mio for combat data/relic
C2; ~30 mio per site, ~45 mio for combat data/relic
C3: ~60 mio per site, ~90 mio for combat data/relic
C4: ~110 mio per site, ~160 mio for combat data/relic
C5: ~230 mio per site, ~290 mio for combat data/relic
C6: ~370 mio per site, ~460 mio for combat data/relic
And if we are talking about data and relic sites, most of them are crap in C1 - C3, the ones in LS will give you better loot, perhaps look at this too.
Oh and don’t forgett, as far as I know J-Space is the only space where you can’t get any deadspace or officer loot…