I went to Joo Koon MRT area just now and asked one man about the
Joo Koon Bus Interchange. He told me that the buses will
enter at Benoi Road and exit at Joo Koon Circle.
When I looked at the place myself, I saw that there seems to be
a passage carved out in the middle of the building, from Benoi Road
to Joo Koon Circle.
From Benoi Road...

From Joo Koon Circle...

From the looks of it, it seems that there will only be end-on
berths - and a handful of bus services - at Joo koon Bus
Interchange.
Taking reference from the end-on berths at Boon Lay Bus
Interchange,

where one side of the pillar can have one bus, and one service
occupies two parking lots,
Joo Koon Bus Interchange has (approximately) ten end-on
parking lots.
I guess there will only be around five bus services at
Joo Koon Bus Interchange, making it similar to (or even
smaller than) Sembawang (7) and Eunos (7).
Dear friends, I am sorry to confess that the things I wrote on
13 August 2014 was only partial correct. While it is correct that
the buses will enter from Benoi Road and exit at Joo Koon Circle,
it is not correct to say that the Joo Koon Bus Interchange has only
end-on berths.
In fact, Joo Koon Bus Interchange does not have any end-on
berth. From my observation (where I can go in a little to see
what's inside, since some metal barriers have been removed) today,
it seems that Joo Koon Bus Interchange is somewhat similar to
Eunos Bus Interchange and Clementi Bus Interchange, where there is
one bus bay (with several parking lots),
one alighting
bay (kinda similar to the one at Eunos Bus
Interchange) and a few sawtooth berths.



Apparently, there seems to be around three sawtooth berths,
which means the Joo Koon Bus Interchange may have around nine to
twelve bus services.
Meanwhile, here's an update on the exit at Joo Koon Circle:

Apparently, it seems that the NTUC Fairprice Hub is ready for
occupancy already. I am currently applying for a part time job at
one of the stores there. They say the store will open at around
end-October/early-November.
From the looks of it, the Joo Koon Bus Interchange may open at
around December this year.
(I know I have made a promise earlier that I will stop using
this account to make postings, but instead I will use the new one.
However, please let me make this one-off posting using this
account, because this is the one hundredth posting in this thread
and this thread is created using this account.)