So where are we in the rollout of Blogger Beta? The rollout, for me, began on August 16. Let's be casual, and call it 2 months.
And Blogger Employee, in Google Blogger Help: An Open Question to "Blogger Employee". says
We're looking forward to migrating all users to beta in the next few months.
Although my personal preference would be a year, I'll suspect we'll be lucky to see that stretch into 4 - 6 months. Let's equate "a few" to 4, which makes the total migration project 6 months. I'm using my Migration To Blogger Beta series and the (straw man, and yes, I realise the limitations here) 10% - 80% - 10% triage, as a reference.
When Blogger makes a reference like "a few months", it looks like they think that the pilot is over, and they're going to migrate everybody homogenously. Given a 6 months (24 weeks) overall project, and we are 8 weeks (1/3) into the project, with a 10% - 80% - 10% weighting, that puts us well into the main part of the project. Even at a 20% - 60% - 20% weighting, we are well into the main part.
Unfortunately, they're still telling a lot of folks
We're not ready to allow you to migrate just yet. Just setup a new Beta blog, and test Beta out.
Now, my suspicion is that they have no idea what problems might arise as the Classic blogs are migrated. They can't really. They have no ideas what features are used on any blogs, because they don't support the blogs. They only support the blogging infrastructure. All user support is provided by the users, in the forums.
The unfortunate thing (for us) is that many blogs haven't been migrated, because Blogger says
We're not ready to allow you to migrate just yet.
Now the reason why they aren't allowed certain blogs to be migrated is that they are still trying to work out the issues. Some issues they know about, and have delayed migration for those blogs. But without those blogs being migrated, they don't have any idea what other issues may be awaiting us.
And the reactions in the forums is interesting. I see a few Bloggers saying
I just migrated my blog, and I'm having no problems. You should migrate now, and enjoy yourself.
Other Bloggers advise
Don't migrate now, wait until all of the bugs are worked out.
I suspect that the answer lies in the middle. So, next I will discuss the variety of Bloggers and their opinions about the migration.