The first two ideas are brilliant as well as highly plausible. In fact, that is what many of us have been wanting, that new rich bahu comes and puts Savita in her place to realize the true value of both Archana and Manav.
Its pathetic that they are killing Sachin off. A rather stupid move in my opinion. I loved how they showed him to be actually aware of what is going on (with his mother's actions and his brother's marriage especially), while he was evolving into a better person.
One thing I want say though is that nobody really knows about the whole Shravani=pregnant scenario yet. In fact, the only confirmed item is that Sachin will die. If you read the article on Tellychakkar (sorry if I'm not allowed to name the website, but it will help clear up some stuff), Sushant only confirms that he is aware that Sachin will die. In the past few months I've noticed the only reliable news on PR comes either in a direct quote from a named cast member (usually Sushant) or in a TellyBuzz article posted the same week that the said event/twist happens. Any other articles from "sources", even TB, that are ahead of the script or unconfirmed by cast members are often wrong. Remember the one that said Manav and Shravani will have an affair back when the separation first happened? The whole pregnancy thing seems like speculation to me, considering that something like this happens in every Ekta show. I wonder though, if that scenario does happen, then why would anyone want to ruin their show like that? What kind of Pavitra Rishta would it be then? That would be a blasphemy. If that track does happen I will be very upset. Even in today's episode I was let down. I was expecting some action to happen, but nothing much happened. The big hyped up confrontation happened and now what... nothing. Disappointing to say the least. For the first time in three months, this week I was truly excited to come home and read the update, and I find all of this.
Reunite ArMan and get over with it! I thought that the show was finally going back on the right track and that yesterday's events would lead to something better, but I guess not. Rawwwwwr.