Also his entry will also complicate things for Vishaka. Hopefully, now, she will always want to give first preference to Vikram. I hope that VIkram is able to make Vishaka dance to his tunes. It will make it all the more sweeter to watch.
I have a hidden hope that Vikram has come to PB to clear his name and will begin to like Rads character and will indirectly be her champion. So, he will end up being a positive character. In the end, I'm sure that he and Vishaka will fall in love with each other.
But, irrespective of anyone making their entry, RaDev's love has a long way to go before they reach their destination and any hurdle is only an additional incentive for them to be committed to each other.