If by "industry 4.0" you mean real time highly detailed data exchange then I don't see it catching on anytime soon. The food industry has far too many small players for that to come together.
I remember years ago Walmart piloting blockchain traceability. Now usually what Walmart says goes. Walmart sets freight rates, commodity pricing, labor market, etc., and even they could not figure out a way to force an industry change with the amount of small producers who don't even know what in the hell a blockchain is.
I'm not sure what you mean by supplier management. As a small time guy running a pretty basic low risk food safety system I relate that to documentation management with suppliers. ("please send me your food safety certificate.") Until there is an open source industry standard format and structure for document exchange it will be the bane of my existence. Right now there are too many extortionist "supplier management software solutions" that sell their barebones software to big retail chains and make their suppliers pay for it. I know of one customer of ours that has gone through double digit number of supplier management platforms. I can't count the number of times I've had to sign up for a new platform just to send documents.
Eventually I see a document exchange protocol that can interface with any number of front end interfaces that will be widely adopted across the industry. This way you aren't paying for a propriety web portal that you are forced to sign up for, but rather choose your own front end to manage document transfer protocols. Think of it like email. IMAP/POP3/Exchange users can send emails to anybody regardless of whether they use Outlook, Gmail, Apple Mail, or any other number of softwares.
Now I don't know when this will happen, could be a very long time, but it is the inevitable solution.
