Just received the BLON BL-05s, and after listening to them for an hour I think it's time to share some first impressions.
Regarding the packaging and accessories: nothing has changed. Same old, as in: same old useless stuff. By now we all probably have a few spare eartips and cables trying to make the first BL-03 work so I guess we are well prepared.
Cable: some generic BLON specific SPC cable, Tips: Spinfit CP-100
This, IMHO, is the true
upgrade to the BL-03 at least in terms of technicalities. The bass bloom is gone (and it takes away the analogue warmth along with it), a pretty neutral-ish midrange with just the slight hint of coloration/warmth, the treble is more up front than the BL-03 but not as on-your-face as the BL-05. Imaging, staging have improved noticeably over both of the previous releases, so has overall detail retrieval. Layering of instruments has esp been improved, instruments don't smear as much as they used to in the BL-03 or BL-05. Shoutiness is very much under control, going through my usual Avril Lavigne playlist and it's been fine.
There have been some subtle changes in the housing design. It's not the same as the BL-05. It's a bit more bulbous now, perhaps to accommodate the new driver. The color scheme is the biggest offender in my book but hey - I can't really see them when they're in my ears. Whether or not one should be donning these in public is a risk only the bravest among us can take.
TL;DR: these are good. Much better than BL-05. Need more time to asses the rest.