I like the changes a lot. Firstly it's not a scythe anymore which apart from being the tiniest bit Cliche would be difficult to wield for fast attacks. Secondly I really like that there is a stronger theme for the Shikai based around the chains. I really like the first ability using the chains as Whips and the second ability also in which you can throw links of chain as projectiles. 
The third ability I have no problem with either but it is a contrast to his other abilities, which is fine and is probably what you were aiming for.

Now this is probably too forward of me, and feel completely free to ignore everything from this point on but I can't help but comment considering I love designing Zanpakuto. Firstly frot eh third abilitiy I think it would be hella cool if instead of the chains turning to Ooze and you being incased in Ooze you throw them out to the side and bring your arms in like your clapping and have them wrap around you so your encased by the chains. 
I think the ability of shadow-stepping could be seperated from the main powers. For instance when the chains wrap around you, you start to turn black like a shadow and then drop into the floor and now you can shadow-step ect. 
Finally I just think it would be cooler if instead of Oozing the chains/sword burns hot like it's being forged and starts to drip and then those drips form the chains/shadow underneath you.

I want to re-iterate there is no need for you to adopt any of this, I just wanted to give some construction added on. But I know what it's like for people to suggest things and then you never really feel like it's 'your' Zanpakuto so absolutely no worries if you choose to ignore all this :) 

On the whole awesome edits in my opinion.