Will modern western artillery continue to flow into Ukraine in a bid to fully replace Ukraine's Soviet systems? This is what has been committed so far...
Dana M2 152mm
Commited: 30
Provider:

Damaged / Destroyed: 5
DITA 155mm
Committed: 9
Provider:


Damaged / Destroyed:
shKH Zuzana 2 155mm
Committed: 24
Provider:

Damaged / Destroyed: 3
CAESAR 155mm
Committed: 139
Provider:


Damaged/ Destroyed: 8
M109 155mm
Committed: 175
Provider:






Damaged / Destroyed: 62
M119 105mm
Committed: 108
Provider:


Damaged / Destroyed: 4
M777 155mm
Committed: 210
Provider:



Damaged / Destroyed: 93
Panzerhaubitze 2000 155mm
Committed: 54
Provider:



Damaged / Destroyed: 2
RCH 155mm
Committed: 54
Provider:

Damaged / Destroyed:
Krab 155mm
Committed: 72
Provider:

Damaged / Destroyed: 32
AS90 155mm
Committed: 32
Provider:

Damaged / Destroyed: 11
8x Archer 155mm
Committed: 8
Provider:

Damaged / Destroyed: 1
Total Provided: 915
Total Damaged / Destroyed: 221
Total Remaing: 694
Obviously Ukraine has been able to repair some of 221 howitzers on the damaged / destroyed list. In particular, they've set up a repair facility in Poland that is repair and returning to service damaged M777s. How many is hard to say however, therefore, I'm going to count them as lost for the sake of this count and assume they're out of action.
With an influx of artillery shells incoming over the next 12-18 months, it's going to be vitally important that the West provide Ukraine with more howitzers to replace their losses. That said, many countries are already back ordered and are delivered new howitzers to Ukraine fresh of the assembly line. So what artillery do I think can be donated to Ukraine over the next year and from what countries?
M109 155mm
Number: 100'ish
Provider:






M777 155mm
Number: 50'ish
Provider:
M198 155mm
Number: 200'ish
Provider:
M109 105mm
Number: 50'ish
Provider:

Firtina I 155mm
Number: 18'ish
Provider:
Krab 155mm
Number: 18'ish
Provider:
Archer 155mm
Number: 8'ish
Provider:
I estimate that there are nearly 450 additional Western made howitzers in current inventories / coming off Western assembly lines that could end up committed to Ukraine over the the next 12-18 months. That should be enough to maintain their current batteries and add several others along with the domestic production of Bohdana 155mms. That said, for Ukraine to really take a big step forward in the artillery war, they would need France

, Germany

, USA

, Britain

, Poland

and Turkey

to approve large scale sales either directly to Ukraine, or to third party buyers for Ukraine.