If they bridge the gap well, then this film will fall somewhere in between PROMETHEUS and ALIEN and that will be a resounding yes. One thing this series is short on is simply Good entries in the series that aren't divisive. I would argue ALIEN 3 is good but a step down, PROMETHEUS is relying too heavily on this film IMHO to be a worthwhile setup, so its probably the most divisive for that reason alone. Clearly A:R has some great scene but is a poorly aging mess, and AVPs are just bad movies in almost every way.
But I have a feeling we may actually get an decent Alien film this time. Not a masterpiece like ALIEN and ALIENS, but something that strikes the right bargain.
If Scott pulls that off I can forgive everything underwhelming in PROMETHEUS for making its way to this. This series deserves its redemption, finally.