convair wrote:Now that the arrival of another A320 (OO-SNG) seems confirmed and member RTM is hinting that the last RJ85 (presumably OO-DJP) will be staying with the fleet for a while and the replacement decision will come this year, the guessing game can start again

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Looking first at the number of aircraft to be replaced (from 2015 onwards?):
1 RJ85
12 RJ100
4 DH4 wet-lease (as 1 lease will already be terminated end March, according to tolipanebas)
Total: 17 (if you consider the coming A320 as a "replacement" for the terminated DH4 lease).
A small number of A319/A320 seems realistic. However, taking into account the size of the planes to be replaced, a small fleet of smaller planes can be expected.
Turboprops?
I personnally like them, the DH and the ATR, but for me, and I believe for many pax as well, an hour flight in these is enough; I know people who do not fly them at all because of claustrophobia.
And they are not very popular in the LH group. To me, SN should only consider them at a later stage to open new and close-by destinations such as Rotterdam, Luxemburg, Nantes, Eindhoven...
So, a 10-12 aircraft fleet of a small jet can be expected. LH has both E190/5 and CRJ 700/900 but rather more of their higher capacity models.
I wouldn't be surprised if LH was to pass on to SN a number of their CRJ700s, while increasing its own fleet of the 900s.
To summarize my guess:
10 CRJ700 ex-LH
4 A320, making a total of 10
3 A319, making a total of 17