I think that anu will confess her feelings when dev will convince her about rajat's proposal and in no time rajat will tell his true intentions of being with karishma. anuraj will be together. but then all events in anuraj's life will happen as if they happen because of anu's fault. anu will feel guilty but this time rajat cannot let her go. yaar rajat ne anu ke liye kitne papad bele hai. he will take these events as coincidences and he will have full faith in anuraj relationship.
rajat's boss has sent him for some secret mission so shaayad uski wajah se ho rahe incidences ka blame anu khud par lele but rajat will know what the truth is. it can be because of the particular mission.
dev trying to separate anuraj. I don't think so because she got it very clear that rajat does not love her but anu. now she has to be mature enough and tell anu that if you can sacrifice your true love for my sake then I will do whatever it takes to unite anuraj.(the audience knows her as that type of character)dev can be grey but not negative after all she is a shastri girl even if she does something it cannot be the only reason of mystery I think she will be trapped and accused for causing trouble but the main culprit will be some body else maybe karishma then again differences in anuraj and anu will take dev's side and shastri sisters will teach the culprit a good lesson
all are thinking that karishma is negative (she can be so) but think if she can be positive she will help rajat and anuraj will be together then she can help neel and bring deveel together. its just a thought but she is negative and if she is the one causing troubles in anuraj lovestory then toh she is finished all sahastri sisters will comme together aur usko uski allahbadi nani yaad dila denge. the show is about them . I think the mystery person is karishma as she is so obsessed with rajat
if now anu seriously agrees to marry rajat then anuraj will be together despite all the struggle because rajat will not let her go now
in the whole story there is something else which is yet to unveil so guys what do you think????????????