It most likely won't gonna happen as Loadiine is unmaintained, outdated and obsolete... + it's used for piracy purposes which Aroma devs are against.
The real right way is what @BaamAlex said: Attach a USB HDD and install your content there.
AFAIK someone is working on a new, wuhb compatible HBL. It just needs time. The legacy HBL is incompatible with Aroma through, so don't use it. Instead bridge the waiting time either with dual-booting into Tiramisu or having homebrews on the home menu.
Yeah I assumed as much.
Tbh I have no problem with it, I only loaded Virtual Console titles through Loadiine due to the benefit of playing N64 and DS titles on it, which RA doesn't do on WiiU yet.
And more so, with NUSspli now having a WUHB target, you can easily get your titles from it and put them in a USB or NAND easily.
Looking forward to that new HBL implementation for WUHB.