Sunnymrut

The email just tells you the website has been updated. The website has the interview letter. It is addressed to the primary applicant, but will list the derivatives too. Derivatives don't get their own letters....would be pointless as they can't get visas without the primary applicant.

I-864 instructions states:

i just received 2nl guys, and get appointment on 15 october 2015 for region asia, wish i am luck, people

They come up with the numbers based on the number of DS260 forms that have been submitted.
They will come up with numbers for the following months based on continued DS260 returns and data from the embassies on success rates, refusal rates, AP, and no-shows. They will adjust numbers as they go along depending on these and how they change/evolve over the fiscal year.
If you look at past trends in the numbers, you will see that it is pretty futile to speculate about numbers based on the first month's numbers or often even past the first few months before you can try predicting any trends.
Even so you can still get it badly wrong. DV2013 had people in the high 90s interviewing for AF for example and DV14 was cut off at 81.1k. There was nothing earlier in the year to indicate such a drastic change.
Still I realise that all the above won't stop people speculating continually right until Sept 30 of each year...

**** closing 2 year old zombie thread. Please start your own thread with your own questions. ******

My brother got a green card (through the diversity visa lottery) and he has type 1 diabetes.
He passed his medical and got approved no problems.

Where are you planning to be interviewed? Armenia? Here we just go to the regional notary center and get a stamped paper from the custody parent, that he/she hands the care of the child to the other parent who will be travelling blah, blah, blah, and it works for the embassy, but I don't know if you do that in Iran, so if it's excepted in your country, don't worry about the consulate, just get it and bring over.

The US won't really care what your "documentary" address is ... and they are highly unlikely to need your physical address for anything (possibly just as part of the background check so do put the physical address as where you actually live). Everything re your spouse is correct, as you were not legally married at the time of entry it was correct to leave him off and you can add him now. It sounds like you will have no problem proving it is a real relationship.
Visa denials for medical reasons are generally for untreated or untreatable infectious diseases, so no diabetes won't be a problem from that perspective. FYI the diseases that would be a problem are listed below, from the CDC website:
http://www.cdc.gov/immigrantrefugeehealth/exams/medical-examination-faqs.html#5
What are the communicable diseases of public health significance that would cause an applicant to fail a medical examination or be inadmissible?
Communicable diseases of public health significance include—
Tuberculosis Syphilis Chancroid Gonorrhea Granuloma Inguinale Lymphogranuloma Venereum Hansen's Disease (Leprosy) And the following two disease categories--
Quarantinable diseases designated by any Presidential Executive Order. Current diseases include: cholera, diphtheria, infectious tuberculosis, plague, smallpox, yellow fever, viral hemorrhagic fevers, severe acute respiratory syndrome (SARS), and influenza caused by novel or re-emergent influenza (pandemic flu). Events that are reportable as a public health emergency of international concern (PHEIC) to the World Health Organization (WHO) under the International Health Regulations (IHR) of 2005 (currently polio, smallpox, SARS, influenza, and other public health emergencies of international concern.)