Bumping the SuperNatural aspect of the XV-5080->Fantom discussion aside...
The Fantom cannot do exactly do the same tones, even with the PCM base, as it was up to the FA series.
Zen-Core, while similar in structure, is missing the Tone Structures of everything before it. This is baffling as the tone structures have all the same components of two tones per structure, each tone having OSC, TVF, TVA...but Zen-Core just dropped a lot of the flexibility of everything up to the new Fantom. Perhaps the new RING, XMOD, and XMOD2 can achieve similar results but forget trying to recreate your favorite patches 1 for 1 on the Fantom.
Here's what I mean: Fantom has a "None" structure (let's call it straight-through: OSC->TVF->TVA) and the previous 20 year generations had "Structure 1." Zen-Core offers more than the previous synths in this structure.
However, if you then study the tone structures of the past synths (
FA Series, Page 47), you'll see a big departure in tone structure flexibility from Zen-Core in that Zen-Core's next closest structure to the past is Ring, which is close, but not exactly, Structure 8. And, it's backwards from the past in Zen-Core. Where Ring in the Fantom is Partial 1 OSC->Ring->HPF->EQ->VCF->VCA, in the past Partial 2 was directly pumped into the Ring Modulator...so, this makes it hard for me to translate past patches just in that swap-er-roo alone. But still, Zen-Core while being a little more flexible at least, in this case, is missing all the other Structure of the past where maybe you want to have a VCF before the RM on both partials (Structure 9 & 10 of FA, and older JV/XV/Fantoms)...can't do it with the new Fantom.
If you have Roland Cloud XV-5080 and a Fantom, take a look at the patch "Black Widow." On the plugin it is PR-B:006, on the Fantom it is PR-E:0134.
Go into the plugin editor of the XV-5080 and select the Structure button. You'll see it uses Structure 10. Look at the Fantom, it uses Structure None. They sound similar. Now, turn off partials 3 & 4 on both and you can hear the real difference of the tone structures. The plugin degrades very nicely where the Fantom's filter simply rolls off.
And this patch? It's lazy programming on the Fantom - it could sound closer to the 5080. If you change the structure on the Fantom for Partial 1&2 to RING, and you have RING OSC Level at 127 for Partial 1, you hear that nice degradation like Stucture 10 of the plugin. In fact, it sounds even better with RING OSC Level 0 on the Fantom. But, you cannot achieve a 1 to 1 recreation on the Fantom because Structure 10 has a TVF before the Ring Mod on both partials.
And - there is no booster structure whatsoever in Fantom. Now, this may be moot with XMOD2...but it's not quite the same experience as the past.
The baffling part is that this is simply software...they could add these legacy structures.
There's one particular patch, not a stock JV-1080 patch, called "TB Ring 303" I found way back in the 90s. It's a really warm, distorted, Ring Mod effected patch that is particularly yummy. I recreated this patch in the Roland Cloud version of the JV-1080...and it's not quite as good as the hardware. Here's too...the parameter values do not match the hardware so it's always a guess if you've matched the parameters correctly. When I got my Fantom, I tried recreating this patch (this is where I discovered the missing stuctures) and even using the RING structure, it lacks that warmth and dynamic response of both the JV-1080 hardware, and plugin. This is a shame, Roland!
What made the JV/XV not just a "Rompler" was these flexible modulations...it wasn't just PCMs filtered and LFO'd...they were real synths. Zen-Core looses this soul. It has a soul of its own, sure, but this is just software now! Roland could include these, I would think.