Honestly, no. Movies that are supposed to resemble real life need to be some what believable. Seriously there are way to many things that are wrong with the idea of the Titanic 2.
1. After the Titanic, the world made some serious changes to how their ships worked. They added enough life boats for everyone, they fixed the problem with the original "unsinkable ship" mechanism that involved 6-7 doors that would contain the leak. Both of these lead to the Titanic 2 to not being so horrible.
2. They have radar and sonar, and they track iceberg movements. Wow, what do you know? They really wouldn't have hit one after all, because they would know where it is, where it is moving and how fast.
3. If this could possibly happen, it really wouldn't take too much to save these people, and the on-board crew would be trained for these sort of things. It wouldn't be utter chaos and destruction. It would be calm and orderly.
All in all, an epic face palm is in order. Thank you for this entertainment.