K3 questions

Will K3 will be separate form in Future or will it be incorporated  within k1 (like 1099 has interest, dividends and capital gain distribution all in 1 form)?

 

What is deadline for partnerships to send k3 or it will vary?

 

Last year I got k3 notice via email but then I have to go taxpackage website to get actual k3. What will be procedure in future? Will it depend of Partnership or are not partnerships required by IRS to mail k3 to limited partners?

 

I own few partnerships which did not bother to send me any notice of K3, I have to find out on my own from tax package  support to get copy of K3. How can I enable notification regarding availability of k3?