You have to ask yourself what their self imposed dead lines for important decisions are for...to put pressure on themselves to actually
make a decision further delay a decision and never actually resolve the core issues. It happened not too long ago with the decision to delay the decision on their ridiculous debt "ceiling" ($16+ Trillion) and it will happen again (and again). So given that DV2014 is only just going to start and has one full year to run...I don't think it will do much harm to this program, provided they continue the way they have in the past.
However, rather than just looking at possible 'inconvenient' delays such a 'Government shutdown' could cause with visa processing...perhaps it's time to reflect and actually THINK about the real state of the US economy and what it means to YOU and everyone seeking to immigrate there.
Not trying to make anyone feel pessimistic rather than encourage to being realistic and not blindly moving to another country that might for once have to deal with its
$16,699,396,000,000.00 problem.